Move ISSUE_TEMPLATE (#1567)

This PR moves the `ISSUE_TEMPLATE` to the root and removes the old ones.

substrate/.github/ISSUE_TEMPLATE/bug.yaml → .github/ISSUE_TEMPLATE/bug_report.yaml

 name: Bug Report
 description: Let us know about an issue you experienced with this software
-# labels: ["some existing label","another one"]
+labels: [ I2-bug, I10-unconfirmed ]
+
 body:
   - type: checkboxes
     attributes:
@@ -20,7 +21,7 @@ body:
     id: bug
     attributes:
       label: Description of bug
-      # description: What seems to be the problem?
+      description: What seems to be the problem?
       # placeholder: Describe the problem.
     validations:
       required: true

substrate/.github/ISSUE_TEMPLATE/feature.yaml → .github/ISSUE_TEMPLATE/feature.yaml

 name: Feature Request
 description: Submit your requests and suggestions to improve!
-labels: ["J0-enhancement"]
+labels: [ I5-enhancement ]
 body:
   - type: checkboxes
     id: existing

cumulus/.github/ISSUE_TEMPLATE/release-client.md

----
-name: Release Checklist for Client
-about: Release Checklist for Client
-title: Release Checklist for Client {{ env.VERSION }}
----
-
-# Release Checklist - Client
-
-### Client Release
-
-- [ ] build a new `polkadot-parachain` binary and publish it to S3
-- [ ] new `polkadot-parachain` version has [run on the network](../../docs/release.md#burnin)
-    without issue for at least 12h
-- [ ] a draft release has been created in the [Github Releases page](https://github.com/paritytech/cumulus/releases) with the relevant release-notes
-- [ ] the [build artifacts](../../docs/release.md#build-artifacts) have been added to the
-    draft-release.
-
----
-
-Read more about the [release documentation](../../docs/release.md).

cumulus/.github/ISSUE_TEMPLATE/release-runtime.md

----
-name: Release Checklist for Runtime
-about: Release Checklist for Runtime
-title: Release Checklist for Runtime {{ env.VERSION }}
----
-
-# Release Checklist - Runtimes
-
-**All** following checks must be completed before publishing a new release.
-The release process is owned and led by @paritytech/release-engineering team.
-The checks marked with :crab: are meant to be checked by [a runtime engineer](https://github.com/paritytech/cumulus/issues/1761).
-
-## Runtimes Release
-
-### Codebase
-These checks should be performed on the codebase.
-
-- [ ] the [`spec_version`](https://github.com/paritytech/cumulus/blob/master/docs/release.md#spec-version) has been incremented since the
-    last release for any native runtimes from any existing use on public (non-private/test) networks
-- [ ] :crab: previously [completed migrations](https://github.com/paritytech/cumulus/blob/master/docs/release.md#old-migrations-removed) are removed for any public (non-private/test) networks
-- [ ] pallet and [extrinsic ordering](https://github.com/paritytech/cumulus/blob/master/docs/release.md#extrinsic-ordering--storage) as well as `SignedExtension`s have stayed
-    the same. Bump `transaction_version` otherwise
-- [ ] the [benchmarks](https://github.com/paritytech/ci_cd/wiki/Benchmarks:-cumulus) ran
-- [ ] the weights have been updated for any modified runtime logic
-- [ ] :crab: the new weights are sane, there are no significant (>50%) drops or rises with no reason
-- [ ] :crab: XCM config is compatible with the configurations and versions of relevant interlocutors, like the Relay Chain.
-
-### On the release branch
-
-The following checks can be performed after we have forked off to the release-candidate branch or started an additional release candidate branch (rc-2, rc-3, etc)
-
-- [ ] Verify [new migrations](https://github.com/paritytech/cumulus/blob/master/docs/release.md#new-migrations) complete successfully, and the
-    runtime state is correctly updated for any public (non-private/test)
-    networks
-- [ ] Run [integration tests](https://github.com/paritytech/cumulus/blob/master/docs/release.md#integration-tests), and make sure they pass.
-- [ ] Push runtime upgrade to Asset Hub Westend and verify network stability
-- [ ] Push runtime upgrade to Collectives and verify network stability
-- [ ] Push runtime upgrade to Bridge-Hub-Kusama and verify network stability
-
-
-### Github
-
-- [ ] Check that a draft release has been created at the [Github Releases page](https://github.com/paritytech/cumulus/releases) with relevant [release
-    notes](https://github.com/paritytech/cumulus/blob/master/docs/release.md#release-notes)
-- [ ] Check that [build artifacts](https://github.com/paritytech/cumulus/blob/master/docs/release.md#build-artifacts) have been added to the
-    draft-release.
-
-# Post release
-
-- [ ] :crab: all commits (runtime version bumps, fixes) on this release branch have been merged back to master.
-
----
-
-Read more about the [release documentation](https://github.com/paritytech/cumulus/blob/master/docs/release.md).

polkadot/.github/ISSUE_TEMPLATE/bug_report.md

----
-name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: ''
-assignees: ''
-
----
-
-- It would help if you submit info about the system you are running, e.g.: operating system, kernel version, amount of available memory and swap, etc.
-- Logs could be very helpful. If possible, submit the whole log. Please format it as ```code blocks```.
-- Describe the role your node plays, e.g. validator, full node or light client.
-- Any command-line options were passed?

polkadot/.github/ISSUE_TEMPLATE/release.md

----
-name: Release issue template
-about: Tracking issue for new releases
-title: Polkadot {{ env.VERSION }} Release checklist
----
-# Release Checklist
-
-This is the release checklist for Polkadot {{ env.VERSION }}. **All** following
-checks should be completed before publishing a new release of the
-Polkadot/Kusama/Westend/Rococo runtime or client. The current release candidate can be
-checked out with `git checkout release-{{ env.VERSION }}`
-
-### Runtime Releases
-
-These checks should be performed on the codebase prior to forking to a release-
-candidate branch.
-
-- [ ] Verify [`spec_version`](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#spec-version) has been incremented since the
-    last release for any native runtimes from any existing use on public
-    (non-private) networks. If the runtime was published (release or pre-release), either
-    the `spec_version` or `impl` must be bumped.
-- [ ] Verify previously [completed migrations](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#old-migrations-removed) are
-    removed for any public (non-private/test) networks.
-- [ ] Verify pallet and [extrinsic ordering](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#extrinsic-ordering) has stayed
-    the same. Bump `transaction_version` if not.
-- [ ] Verify new extrinsics have been correctly whitelisted/blacklisted for
-    [proxy filters](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#proxy-filtering).
-- [ ] Verify [benchmarks](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#benchmarks) have been updated for any modified
-    runtime logic.
-
-The following checks can be performed after we have forked off to the release-
-candidate branch or started an additional release candidate branch (rc-2, rc-3, etc)
-
-- [ ] Verify [new migrations](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#new-migrations) complete successfully, and the
-    runtime state is correctly updated for any public (non-private/test)
-    networks.
-- [ ] Verify [Polkadot JS API](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#polkadot-js) are up to date with the latest
-    runtime changes.
-- [ ] Check with the Signer's team to make sure metadata update QR are lined up
-- [ ] Push runtime upgrade to Westend and verify network stability.
-
-### All Releases
-
-- [ ] Check that the new client versions have [run on the network](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#burn-in)
-    without issue for 12+ hours on >75% of our validator nodes.
-- [ ] Check that a draft release has been created at
-    https://github.com/paritytech/polkadot/releases with relevant [release
-    notes](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#release-notes)
-- [ ] Check that [build artifacts](https://github.com/paritytech/polkadot/blob/master/doc/release-checklist.md#build-artifacts) have been added to the
-    draft-release
-- [ ] Check that all items listed in the [milestone](https://github.com/paritytech/polkadot/milestones) are included in the release.
-- [ ] Ensure that no `freenotes` were added into the release branch after the latest generated RC