aggregate coinbase rewards (#239)

aggregate coinbase rewards (#239)

* modify struct to consensusResult

* rename file name

* extract common funtion

* modify name

* modify coinbase tx

* optimise

* aggregate amount for same program

* fix coinbase calculate

* delete ℹrrelevant test code

* modify get asset

* modify

* modify variable name

* optimise detachBlock for consensusResult

* optimise

* optimise

* restruct

* modify test

* filter zero amount output

* filter zero amount for protocol

* modify name

* move

* rename

* modify unit test

* add test

* optimise

* optimise code

* optimise

* move calculate txfee

* optimise code

* optimise

* restruct

* optimise

* optimise

* modify calculate tx fee

* optimise

* optimise

* optimise

* optimise

* optimise

* optimise