Basically combines all the recommended calls into one
`build_using_defaults()` call or `init_with_defaults()` when there are
some custom changes required.

There is no need to compile wasm-builder in `no_std` as we skip the compilation of the crate any
way. So, we can also directly disable wasm-builder as dependency in `no_std` to improve build times.

* rerame res to chain-specs

* split polkadot-parachains dir

* rename dir parachains-common to common

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

* package naming conflict fixed (#753)

* Fix rococo naming

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

chore: refactor for consistant naming of the crates and paths of the runtimes

* tests: ignore folder created by the tests
* chore: refactoring
* Update polkadot-parachains/Cargo.toml

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

* Rename `rococo-collator` to `polkadot-collator`

Also contains some other small changes.

* Test fixes and some further search&replace

* Add a command to purge the relay chain only

* WIP

* Update rococo-parachains/src/cli.rs

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

* Move cli stuff to its own crate

* Copyright dates

* Test not working for some reason...

* WIP

* Revert "WIP"

This reverts commit f97cd63742c7df822e4a6e52a29db5e0f56b7bfa.

* Fix test to use provided relay chain

* Apply suggestions from code review

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

* Add hint about which database could not be purged

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

* seal: Copy over a legacy version of pallet_contracts from substrate

* seal: Fix substrate dependency pathes and add as dependency to runtime

* seal: Adapt pallet to current substrate version

* seal: Add contracts pallet to runtime

* seal: Implement rpc runtime api

* seal: Update to latest rpc output format

* seal: Replace child trie by prefix trie

* seal: Add contracts endpoint to the client

* seal: fixup rpc test

* Fix whitespace issue

Co-authored-by: Sergei Shulepov <[email protected]>

* seal: Move pallet out of the runtime directory

* seal: Create a seperate runtime for contracts

* Move parachains to top level directory

* seal: Disable rent for easier testing

Co-authored-by: Sergei Shulepov <[email protected]>

* Fix block announce

* Fix compilation

* Update to latest Substrate & Polkadot

* Replace --unsafe-rpc-export with --unsafe-rpc-external

* Add --rpc-methods=Unsafe

Documented in substrate 24486f52929e9e518eeccbc6ad6da70e9e5bdf8a

* typos

* more typo

* fixed rpc expose

* Disable the integration test

Co-authored-by: Cecile Tonglet <[email protected]>

* Start fixing compilation errors

* Switch to git version of `WasmBuilder`

* Fix compilation

* More updates

* Adapt to latest Substrate/Polkadot changes