* started crate-level documentation on relays and relayers pallet

* fixes in finality and parachain finality relay docs

* fix links

* grammar fixes

* store block number ++ state root in parachains pallet

* fixed parachains finality APIs

* (test commit)

* removed test code

* deduplicated code a bit

* removed commented code

* spelling

* Update modules/parachains/src/lib.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* Update modules/parachains/src/lib.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* Update modules/parachains/src/mock.rs

Co-authored-by: Adrian Catangiu <[email protected]>

* added comment

Co-authored-by: Adrian Catangiu <[email protected]>

* Cleaning deps + satisfy `cargo build --release --all-targets --all-features`

* PR fixes

* read extrinsic dispatch result for mined transaction

* commit for the history

* Revert "commit for the history"

This reverts commit 99341b04.

* Revert "read extrinsic dispatch result for mined transaction"

This reverts commit 662b776c.

* check for successfult transaction in finality relay

* check for successful transaction in parachains relay

* TrackedTransactionStatus ->TrackedTransactionStatus<HeaderId>

* check for successful transaction in messages relay

* fix compilation

* message_lane_loop_is_able_to_recover_from_unsuccessful_transaction

* fixed too-complex-type clippy error

* aaand compilation

* use transaction tracker in parachains relay

* actually return tx tracker from target client implementation

* Bump log version to 0.4.17

* Removed unnecesseray dependency + rename BridgeGrandpaMillauCall to BridgeGrandpaCall

* Parachains source cosmetic changes

- Make `ParaHashAtSource` more generic
- Modify `on_chain_parachain_header` to return `HeaderId`
- Shortening variable names

Signed-off-by: Serban Iorga <[email protected]>

* Change ParachainsSource::max_head_id type

Change ParachainsSource::max_head_id to Arc<Mutex<NoopOption>>

Signed-off-by: Serban Iorga <[email protected]>

* code review changes

* add another condition to the reject-obsolete-parachain-heads extension

* add tracing to obsolete-tx-extensions

* fix tests

* extension_rejects_header_from_new_relay_block_with_same_hash

* fmt

* fix benchmarks

* parachain loop metrics

* some fixes

* mini refactoring

* add tests

* added parachains pallet benchmarks

* deduplicate insertion of bridged header

* pruning weight

* fixes

* fix compilation

* add RialtoParachain <> Millau bridge to test deployments

* flush (still not working, but possible fix in comments)

* proper fix

* fixed on-demand parachains relay case: if better relay header is delivered, then we must select para header that may be proved using this relay header

* dashboards

* fmt

* removing debugging code

* more cleanup

fixed on-demand parachains relay case: if better relay header is delivered, then we must select para header that may be proved using this relay header (#1419)

* fix clippy warnings

* try to reenable proper clippy on CI

* fix clippy error

* more Eqs

* ignore clippy::derive-partial-eq-without-eq - clippy seems to be broken now :/