* Adds support for returning a custom header from `validate_block`

This adds support for returning a custom header from `validate_block`. Before this, we always
returned the header of the block that was validated (and still do it by default). However, after
this pr it is possible to set a custom header or better custom head data that will be returned
instead from `validate_block`. This can be for example when a chain wants to fork.

* FMT

* almost integrate

* revert branch changes

* remove extra deps

* some review comments'

* Fix a bunch of stuff

* Update parachain-template/node/Cargo.toml

Co-authored-by: Alexander Popiak <[email protected]>

* Fix

* Fix

* fix benchmark

* fmt

* Remove wrong bench test

Co-authored-by: Alexander Popiak <[email protected]>

* Rename InboundXcmpStatus and its related types

* Rename OutboundXcmpStatus and its relevant types

* Add documentation to the newly created types

* Ensure storage prefixes are kept the same

* Add code comments

* Revert storage name changes

* typo fix

Co-authored-by: Alexander Popiak <[email protected]>

* new ensure one of

* Update Cargo.lock

* Update SUbstrate & Polkadot

Co-authored-by: Bastian Köcher <[email protected]>

* increase statemine balance

* Fix formatting

Co-authored-by: Wilfried Kopp <[email protected]>

* Fix secret used to send announcements

* Fix matrix secret

* companion

* Run cargo update

Co-authored-by: Keith Yeung <[email protected]>

* update frame-benchmarking/runtime-benchmarks

* cargo update

* add more feature flags

Co-authored-by: Shawn Tabrizi <[email protected]>

* Initial version

* Fix branch pattern

* Fix template

* Update .github/ISSUE_TEMPLATE/release.md

Co-authored-by: Alexander Popiak <[email protected]>

* Update .github/ISSUE_TEMPLATE/release.md

Co-authored-by: Alexander Popiak <[email protected]>

* Rebase master and fmt

* Swap out Polkadot JS section for integration tests + remove tags

* remove tags

Co-authored-by: Alexander Popiak <[email protected]>

* Specify the ref to checkout

* Fix default ref2

* Fix naming

* package naming conflict fixed (#753)

* Fix rococo naming

Co-authored-by: Ignacio Palacios <[email protected]>

* Update Substrate & Polkadot

* Disable tests without debug assertions

* Remove dead dep.

* cargo update -p polkadot-primitives

* Revert "cargo update -p polkadot-primitives"

This reverts commit 4e48e1dabe44fc1fb99c0d074281998e82584ba8.

* cargo update -p polkadot-primitives

Co-authored-by: Andronik Ordian <[email protected]>

* WIP Release notes generation and templates

* WIP Add new sections to the template

* WIP renaming and wip

* Fix runtime template

* Add doc, NO_CACHE and tweaking of the templates

* Renaming cl into cumulus to make room for the polkadot and substrate

* Fetch data from Substrate and Polkadot

* WIP convert bash script to ruby

* Convert to Ruby

* Fix host function delection

* Extract priority to a macro

* Fix misc changes

* Draft release workflow

* Fix runtime dir

* Add ENV to ignore runtimes

* Install tooling separately

* WIP troubleshooting - remove sudo

* Minor formatting fixes

* Fix workflow

* Add missing dep

* Linting

* Fix changelog script

* Add missing tera install

* Use absolute paths

* Fix path + cleanup

* Fix changelog generation

* Add missing pre-release ENV

* Fix rust version ENV

* Fix release notes path

* Fix output

* Fix runtime_dir for cumulus

* Fix ENV substitutions

* Fix styling

* Debugging

* Styling

* Fix call to fetch the runtime version

* Cleanup and doc

* Delete sample .env

* Update scripts/changelog/templates/change.md.tera

Co-authored-by: Alexander Popiak <[email protected]>

* Change XCM emoji marker for a ✉

️

Co-authored-by: Alexander Popiak <[email protected]>

* Moving `pallet-asset-tx-payment` to substrate

* Pointing `substrate` to my branch to fix the CI

* Fixing cargo.lock

Memmlock2 was in double

* Duplicate Prost-build

* cargo update

* Fixing cargo.lock post merge

* Changes to `Cargo.toml` after substrate merge

This PR is mainly to fix the error `[E0670]: async fn is not permitted in the 2015 edition` when
using Vim along with rust-analyzer, it also removes an unused dependency from parachain-template.

Ref: https://github.com/rust-analyzer/rust-analyzer/issues/1959

* move to rust 2021

* fix formatting, more moves

* update field events

* update polkadot and substrate

Co-authored-by: thiolliere <[email protected]>

* Update for latests substrate & polkadot

* fmt

* Use blank task group name

Signed-off-by: Andrei Sandu <[email protected]>

* cargo fmt

Signed-off-by: Andrei Sandu <[email protected]>

* Update

Signed-off-by: Andrei Sandu <[email protected]>

* update Cargo.lock and switch from 0.9.12 to master

* format with LATEST nightly

Co-authored-by: Andronik Ordian <[email protected]>

* tweaks from template downstream review #80

* more tweaks

* Update parachain-template/node/src/command.rs

* tweaks to template and other chainspecs

* fmt

* update more tweaks from downstream

* fix build

* dockerfiles: polkadot-collator_builder.Containerfile and docs

* dockerfiles: optimize test dockerfile

Adds a benchmark to measure transaction throughput.

* align the different Statemint runtimes so they are more similar in structure

* align Unpaid Execution filter

* revert changes to Unpaid execution filter for Westmint

This was never planned to be a permanent feature. This was mainly added for testing purposes, but
now was copied by everybody. The users should be more specific about the para id and set this
properly in the chain spec.