Voter reward (#344)
* add vote reward
* add config
* fix
* modify
* modify sql
* fix review
* modify sql
* add roundVoteBlockNums
* recover code
* modify format
* modify code
* optimized code
* modify format
* fix review
* fix review
* fix review
* single xpub
* modifu
* fix review
* fix
* modify format
* fix review
* modify coinbase
* fix bug
* fix
* fix review
* add Rollback
* modify
* fix
* fix
* fix voter rewward
* modify
* fix review
* fix review
* remove code file
* fix
* add readme
* fix
* rm file
* fix review
* rm chain_id
* modify readme
- [DH] toolbar/apinode/block.go
- [DH] toolbar/apinode/node.go
- [DH] toolbar/apinode/node_test.go
- [DH] toolbar/apinode/transaction.go
- [DH] toolbar/common/address.go
- [DH] toolbar/federation/service/node.go
- [DH] toolbar/vote_reward/config/config.go
- [DH] toolbar/vote_reward/settlementvotereward/settlementreward.go
- [DH] toolbar/vote_reward/synchron/block_keeper.go