* Stricter transition check

* EthBackendServer.numberSent was unused

* Take account of PoS blocks in TopSeenHeight

* Report Valid ExecutionStatus only after all stages, not straight in headers

* Print TTD on startup

* No need to check parent.Hash() again

* core: change baseFee into baseFeePerGas in genesis json

* fix typo

Co-authored-by: Martin Holst Swende <martin@swende.se>

* contracts: implemented trace_filter intersection mode for Trace API (#2119)

* fixed formatting

* revisited error check during tx tracing

* added comunication with channels

* added final mining

* removed trash

* bug fixing

* async calls

* one thread

* tests

* better comments

* no lock

* better placing of skipCycleHack

* removed long timer

* moved transitioned block processing

* better naming

* disabled updates on blocks

* sync.Cond

* 2 sync.Cond

* better locking

* Use single sync.Cond. Proposer shutdown

Co-authored-by: yperbasis <andrey.ashikhmin@gmail.com>

Co-authored-by: Aleksandr Borodulin <a.borodulin@axioma.lv>

* save

* save

* block proposing

* standard finalized

* mergemock execution

* private chain can now be ran yay

* perfectioned

* polished

* more polishing

* resize PR

* resize PR

* resize PR

* simplifications

* fixed tests

* better syncronous communication

* better syncronous once again

* clean

* Re-enabled headers verification

* mining finish

* mining finish

* cleaned hash computation

* fixed evm bug

* go.mod

* Update .gitignore

* Update .gitignore

* Update .gitignore

* removed new line from .gitignore

* added go.mod and go.sum

* feeRecipient into preset

* useExternal

* todo

* fixed comment for forkchoiceUpdateV1

* smaller

* smaller

* Revert changes to miner frequency

* Restore useExternalTx

* Fix headerLoadFunc

* do not reset payloadId

* rename

* extra is empty

Co-authored-by: yperbasis <andrey.ashikhmin@gmail.com>

* Incremental trie test

* TestStorageDeletion

* Remove TotalDifficulty stage

* Introduce FeedHeaderFuncType

* Some TODOs

* Don't gossip PoS headers

* FeedHeaderPoS

* Call header.Hash once

* Use FeedHeaderPoS for to write PoS header

* Support errors in EngineExecutePayloadV1

* useExternalTx boilerplate

* Call VerifyHeader on PoS header

* latestValidHash must be nil when status is SYNCING

* fixCanonicalChain instead of canonicalHeadersCollector

* engine.VerifyHeader + FeedHeaderPoS as headerLoadFunc

* fix daemon

Co-authored-by: Giulio Rebuffo <giulio.rebuffo@gmail.com>