refactor: Split InterpretOption into Interpret{Key,Value} functions
refactor: Split InterpretOption into Interpret{Key,Value} functions

Co-authored-by: Anthony Towns <2048b22ac0881f917af3e938105055ab85498548@erisian.com.au>

fanquake/bitcoin,particl/particl-core,domob1812/bitcoin,achow101/bitcoin,fanquake/bitcoin,dscotese/bitcoin,domob1812/namecore,prusnak/bitcoin,jamesob/bitcoin,kallewoof/bitcoin,MarcoFalke/bitcoin,mm-s/bitcoin,fujicoin/fujicoin,fanquake/bitcoin,dscotese/bitcoin,dscotese/bitcoin,anditto/bitcoin,AkioNak/bitcoin,ajtowns/bitcoin,jlopp/statoshi,lateminer/bitcoin,tecnovert/particl-core,domob1812/bitcoin,sstone/bitcoin,instagibbs/bitcoin,GroestlCoin/bitcoin,sstone/bitcoin,namecoin/namecore,prusnak/bitcoin,AkioNak/bitcoin,sstone/bitcoin,fanquake/bitcoin,namecoin/namecore,pataquets/namecoin-core,bitcoinsSG/bitcoin,pataquets/namecoin-core,bitcoin/bitcoin,lateminer/bitcoin,mruddy/bitcoin,instagibbs/bitcoin,instagibbs/bitcoin,jambolo/bitcoin,sstone/bitcoin,jambolo/bitcoin,tecnovert/particl-core,anditto/bitcoin,GroestlCoin/GroestlCoin,dscotese/bitcoin,ajtowns/bitcoin,bitcoinsSG/bitcoin,GroestlCoin/bitcoin,ajtowns/bitcoin,instagibbs/bitcoin,bitcoin/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,fujicoin/fujicoin,jlopp/statoshi,GroestlCoin/bitcoin,namecoin/namecoin-core,domob1812/bitcoin,Xekyo/bitcoin,ajtowns/bitcoin,jambolo/bitcoin,particl/particl-core,andreaskern/bitcoin,achow101/bitcoin,fujicoin/fujicoin,Xekyo/bitcoin,dscotese/bitcoin,kallewoof/bitcoin,achow101/bitcoin,bitcoinsSG/bitcoin,domob1812/bitcoin,bitcoinsSG/bitcoin,prusnak/bitcoin,bitcoinknots/bitcoin,fanquake/bitcoin,domob1812/namecore,domob1812/bitcoin,lateminer/bitcoin,MarcoFalke/bitcoin,mm-s/bitcoin,lateminer/bitcoin,MarcoFalke/bitcoin,mm-s/bitcoin,sstone/bitcoin,sipsorcery/bitcoin,MarcoFalke/bitcoin,namecoin/namecore,achow101/bitcoin,jamesob/bitcoin,dscotese/bitcoin,kallewoof/bitcoin,namecoin/namecoin-core,domob1812/bitcoin,ajtowns/bitcoin,instagibbs/bitcoin,sipsorcery/bitcoin,lateminer/bitcoin,tecnovert/particl-core,jambolo/bitcoin,namecoin/namecoin-core,fujicoin/fujicoin,bitcoin/bitcoin,AkioNak/bitcoin,bitcoinsSG/bitcoin,pataquets/namecoin-core,MarcoFalke/bitcoin,sipsorcery/bitcoin,achow101/bitcoin,sipsorcery/bitcoin,domob1812/namecore,GroestlCoin/GroestlCoin,anditto/bitcoin,jlopp/statoshi,kallewoof/bitcoin,bitcoinknots/bitcoin,MarcoFalke/bitcoin,bitcoin/bitcoin,bitcoinknots/bitcoin,bitcoinknots/bitcoin,anditto/bitcoin,Xekyo/bitcoin,namecoin/namecore,bitcoinsSG/bitcoin,jamesob/bitcoin,ajtowns/bitcoin,GroestlCoin/GroestlCoin,Xekyo/bitcoin,jamesob/bitcoin,pataquets/namecoin-core,AkioNak/bitcoin,mruddy/bitcoin,bitcoin/bitcoin,kallewoof/bitcoin,GroestlCoin/bitcoin,particl/particl-core,particl/particl-core,lateminer/bitcoin,bitcoin/bitcoin,prusnak/bitcoin,jamesob/bitcoin,jamesob/bitcoin,pataquets/namecoin-core,namecoin/namecoin-core,andreaskern/bitcoin,jlopp/statoshi,mruddy/bitcoin,andreaskern/bitcoin,tecnovert/particl-core,particl/particl-core,GroestlCoin/bitcoin,prusnak/bitcoin,GroestlCoin/GroestlCoin,namecoin/namecoin-core,jlopp/statoshi,sipsorcery/bitcoin,fujicoin/fujicoin,jlopp/statoshi,mm-s/bitcoin,GroestlCoin/bitcoin,tecnovert/particl-core,jambolo/bitcoin,sstone/bitcoin,bitcoinknots/bitcoin,kallewoof/bitcoin,domob1812/namecore,namecoin/namecore,particl/particl-core,anditto/bitcoin,jambolo/bitcoin,fanquake/bitcoin,mruddy/bitcoin,domob1812/namecore,namecoin/namecore,anditto/bitcoin,fujicoin/fujicoin,andreaskern/bitcoin,prusnak/bitcoin,Xekyo/bitcoin,andreaskern/bitcoin,AkioNak/bitcoin,achow101/bitcoin,sipsorcery/bitcoin,instagibbs/bitcoin,GroestlCoin/GroestlCoin,mm-s/bitcoin,pataquets/namecoin-core,mm-s/bitcoin,domob1812/namecore,mruddy/bitcoin,namecoin/namecoin-core,tecnovert/particl-core,GroestlCoin/GroestlCoin,andreaskern/bitcoin,AkioNak/bitcoin