* Add ECDSA support
* Add domain separation to ECDSA sighash
* Use InfallibleWrite instead of Write
* Rename funcs
* Fix wrong use if vm.sigCache
* Add TestCalculateSignatureHashECDSA
* Add consts
* Fix comment and test name
* Move consts to the top
* Fix comment
* Use BLAKE2B instead of HASH160, and get rid of any usage of RIPEMD160
* Change genesis coinbase payload script to OP_FALSE
* Fix tests after conflict
* Remove duplicate tests
* Change file name
* Change atomic swap to use proper hash size
* Move CalculateSignatureHash to consensushashing
* Added CalcSignatureHash_BIP143 with all parameters except the re-used hashes
* Add handling of outputHash
* Add sequencesHash to the mix
* Add previousOutputsHash to the mix
* Replace legacy CalculateSigHash with new one, and re-wire to all non-test code
* Add missing types to WriteElement
* Fix tests in txscript
* Fix tests in rest of code
* Add missing comments
* Add SubnetworkID and Gas to sigHash
* Add TestCalculateSignatureHash
* Invert condition in SigHashSingle getOutputsHash
* Explicitly define that payloadHash for native transactions is 0
* added benchmark to CalculateSignatureHash
* Reformat call for signAndCheck
* Change SigHashes to be true bit-fields
* Add check for transaction version
* Write length of byte array in WriteElement
* hashOutpoint should get outpoint, not txIn
* Use inputIndex instead of i to determine SigHashType
* Use correct transaction version + fix some typos
* Fix hashes in test
* Reformat an overly-long line
* Replace checkHashTypeEncoding with caalls to hashType.IsStandardSigHashType
* Convert hashType to uint8
* Add comment
