tests: abstract out precomputed BIP341 signature hash elements
tests: abstract out precomputed BIP341 signature hash elements

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