* Introduce `CollectCollationInfo` runtime api
Instead of using well known keys to communicate information about a
collation between the runtime and the collator, we now use a runtime api
for this.
* Fixes bug
* Apply suggestions from code review
Co-authored-by: Sergei Shulepov <sergei@parity.io>
* Doc update
Co-authored-by: Sergei Shulepov <sergei@parity.io>
Before when loading a chain spec from a file it was always using the
rococo parachains runtime genesis config. This leaded to problems when
trying to convert a shell chain spec json file to a raw chain spec.