* MQC auth
Update polkadot
WIP
* Update polkadot
* Silly syntax errors
* Fix typo
* Leave some comments and docs
* Apply suggestions from code review
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
* Introduce the MessageQueueChain structure
* Move the HRMP channel relevance check below
* Fix the `receive_hrmp_after_pause` test
* ValidationData is passed by reference
* Replace "to cumulus" with "to the collator"
* Update the test so that they are same as in polkadot
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
* rename parachain-{upgrade -> system}
* Merge message-broker into parachain-system
* Remove message-broker and clean up
* Update docs
* Test upward messages sending
And also update the relay-sproof-builder so that it allows to set the
relay dispatch queue size for the given parachain.
* Test horizontal message sending
* Remove old inherent definitions