The way submit_and_watch_signed_extrinsic is used now, we can always
derive the SignParam from other params. If in the future we need more
customization possibilities, we can define a new method.

* updated weights

* also fix off-by-one in benchmarks

* do not require new headers if lane is empty

* handle edge case (need proof-of-delivery-confirmations to be able to submit delivery tx) in required_source_header_at_target

* clippy

* batch transactions in message relay: API prototype

* get rid of Box<dyn BatchTransaction> and actually submit it

* test batch transactions

* message_lane_loop_works_with_batch_transactions

* removed logger

* BatchConfirmationTransaction + BatchDeliveryTransaction

* more prototyping

* fmt

* continue with batch calls

* impl BatchCallBuilder for ()

* BatchDeliveryTransaction impl

* BundledBatchCallBuilder

* proper impl of BundledBatchCallBuilder + use it in RialtoParachain -> Millau

* impl prove_header in OnDemandHeadersRelay

* impl OnDemandParachainsRelay::prove_header (needs extensive tests)

* added a couple of TODOs

* return Result<Option<BatchTx>> when asking for more headers

* prove headers when reauire_* is called && return proper headers from required_header_id

* split parachains::prove_header and test select_headers_to_prove

* more traces and leave TODOs

* use finality stream in SubstrateFinalitySource::prove_block_finality

* prove parachain head at block, selected by headers relay

* const ANCIENT_BLOCK_THRESHOLD

* TODO -> proof

* clippy and spelling

* BatchCallBuilder::build_batch_call() returns Result

* read first proof from two streams

* FailedToFindFinalityProof -> FinalityProofNotFound

* changed select_headers_to_prove to version from PR review

* Check origin?

* Removed ensure_signed

* clippy

* Remove SOURCE_PARACHAIN_PARA_ID

Remove SubstrateParachainsPipeline::SOURCE_PARACHAIN_PARA_ID

* Avoid duplicate ChainBase and ParachainBase implementations

* Replace ChainShadow with UnderlyingChainProvider

* Remove WeightToFee

* Remove leftover

* Fix bridge hub rococo/wococo weights

* Remove SS58Prefix

* 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]>

* relayer rewards integration: initial commit

* added refund-relayer-extension to the millau runtime

* spelling

* spelling again

* new -> Default

* add utlity pallet to the Millau runtime

* RefundRelayerForMessagesDeliveryFromParachain prototype

* done with RefundRelayerForMessagesDeliveryFromParachain::post_dispatch

* parse calls

* check batch for obsolete headers/messages

* fmt

* shorten generic arg names + add parachain id generic arg

* check lane_id

* impl all state read functions

* fix typos from review

* renamed extension + reference issue from TODO

* tests for pre-dispaytch

* renamed extension source file

* tests for post-dispatch

* abstract fee calculation

* clippy

* actually fix clippy

* Update bin/runtime-common/src/refund_relayer_extension.rs

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

* Update bin/runtime-common/src/refund_relayer_extension.rs

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

* Update bin/runtime-common/src/refund_relayer_extension.rs

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

* Update bin/runtime-common/src/refund_relayer_extension.rs

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

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

* DeliveryConfirmationPayments

* ref proper PR in TODO

* removed MintReward and added PayLaneRewardFromAccount

* clippy

* added issue ref to TODO

* Replace const parameters

* fmt

* missed out Maxlocks

* `dry-run` mode for init bridge command

* fix clippy

* Added generic DispatchLevelResult to the MessageDispatchResult

* Removed unnecessery `Clone + Decode + sp_std::fmt::Debug + Eq` + clippy

* per-lane rewards in pallet-bridge-relayers

* add lane id to RewardPaid event

* clippy

* fix benchmarks

* Add RococoBridgeHub <> WococoBridgeHub full 2 way bridge

* Use StorageMapKeyProvider instead of account_info_storage_key()

Avoid duplicating storage_map_final_key()

* clippy + leftovers

* remove dispatch_result field

* fix benchmarks

* complex parachain <> parachain relay

* spelling

* pallet-bridge-beefy: initial commit