* implement a proposer utility for consensus
* tidy up deps of new proposer crate
* implement a collator-service crate
* rewrite cumulus-collator to use new service struct
* implement a module for relay-chain-driven collators
* adapt start_collator to use the new relay_chain_driven module
* move collator-service to a public submodule
* create an interface trait for the proposer
* begin aura reimplementation
* address review comments
* update substrrate git ref
* update polkadot-primitives refs
* rough draft of aura collation using standalone fns
* add a ServiceInterface
* port aura reimpl to use new service trait
* add an import queue utility crate
* remove import queue crate in favor of module in common
* implement new verification queue for aura
* implement remaining behaviors
* split 'collate' into smaller functions that could be pub
* add telemetry
* fix doc job?
* Specify async-trait patch version
Co-authored-by: Bastian Köcher <git@kchr.de>
* remove 'fn@' in doc string.
Co-authored-by: Bastian Köcher <git@kchr.de>
* update variable names to be more readable
* refactor proposer errors to anyhow/thiserror
* remove manual span instrumentation
Co-authored-by: Bastian Köcher <git@kchr.de>
* make slot_claim private
* fix unused import
* fmt
* fmt
* make clippy happy
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Co-authored-by: Bastian Köcher <git@kchr.de>