Few changes for governance rpc: (#1351)
Few changes for governance rpc: (#1351)

- allow filtering by all signals in `list`
- do not count/print funding votes for watchdogs
biblepay/biblepay,jmgilbert2/energi,terracoin/terracoin,jmgilbert2/energi,jmgilbert2/energi,nmarley/dash,BlockchainTechLLC/3dcoin,thelazier/dash,ivansib/sibcoin,schinzelh/dash,ediston/energi,terracoin/terracoin,crowning-/dash,biblepay/biblepay,ionomy/ion,ediston/energi,crowning-/dash,schinzelh/dash,dashpay/dash,RyanLucchese/energi,nmarley/dash,ediston/energi,schinzelh/dash,RyanLucchese/energi,schinzelh/dash,thelazier/dash,ionomy/ion,schinzelh/dash,ionomy/ion,ivansib/sibcoin,RyanLucchese/energi,dashpay/dash,nmarley/dash,thelazier/dash,dashpay/dash,crowning-/dash,nmarley/dash,BlockchainTechLLC/3dcoin,ionomy/ion,willwray/dash,biblepay/biblepay,thelazier/dash,rsdevgun16e/energi,schinzelh/dash,RyanLucchese/energi,rsdevgun16e/energi,jmgilbert2/energi,BlockchainTechLLC/3dcoin,rsdevgun16e/energi,dashpay/dash,terracoin/terracoin,ionomy/ion,willwray/dash,ediston/energi,ivansib/sibcoin,rsdevgun16e/energi,RyanLucchese/energi,crowning-/dash,thelazier/dash,biblepay/biblepay,UdjinM6/dash,BlockchainTechLLC/3dcoin,biblepay/biblepay,willwray/dash,jmgilbert2/energi,terracoin/terracoin,biblepay/biblepay,ediston/energi,biblepay/biblepay,BlockchainTechLLC/3dcoin,ivansib/sibcoin,ivansib/sibcoin,terracoin/terracoin,UdjinM6/dash,ediston/energi,crowning-/dash,terracoin/terracoin,biblepay/biblepay,crowning-/dash,ivansib/sibcoin,rsdevgun16e/energi,dashpay/dash,rsdevgun16e/energi,willwray/dash,BlockchainTechLLC/3dcoin,RyanLucchese/energi,ionomy/ion,willwray/dash,UdjinM6/dash,willwray/dash,nmarley/dash,nmarley/dash,UdjinM6/dash,UdjinM6/dash,nmarley/dash,jmgilbert2/energi