* Add Parlia consensus engine for Binance Smart Chain support
* Leave RamanujanBlock as nil in params/config.go
* Run `go fmt` on files needing it
* Add comment for PoSA
* Remove empty branches and ineffectual assignments in parlia.go
* Remove commented imports
* Fix compilation error
* Remove EIP155Signer in transaction_signing.go
* Fix compilation issue
* Fix go fmt issues
* Remove Ramanujan from print statement
* Remove references to EthAPIBackend approach
* Fix Finalize method across consensus engines
* Run go fmt
* More linting
* Remove more changes
* remove a comment
* Remove unneeded hashing function
* Remove bytes check and fix actual vs expected mistake
