[validation] Move all const declarations to top of validation.h
[validation] Move all const declarations to top of validation.h

lateminer/bitcoin,jnewbery/bitcoin,MarcoFalke/bitcoin,yenliangl/bitcoin,domob1812/bitcoin,prusnak/bitcoin,sipsorcery/bitcoin,andreaskern/bitcoin,qtumproject/qtum,particl/particl-core,bitcoin/bitcoin,jambolo/bitcoin,namecoin/namecoin-core,namecoin/namecoin-core,ajtowns/bitcoin,mm-s/bitcoin,achow101/bitcoin,namecoin/namecore,jnewbery/bitcoin,jambolo/bitcoin,jamesob/bitcoin,AkioNak/bitcoin,qtumproject/qtum,litecoin-project/litecoin,EthanHeilman/bitcoin,Xekyo/bitcoin,pataquets/namecoin-core,cdecker/bitcoin,yenliangl/bitcoin,rnicoll/dogecoin,apoelstra/bitcoin,domob1812/namecore,dscotese/bitcoin,alecalve/bitcoin,lateminer/bitcoin,qtumproject/qtum,particl/particl-core,GroestlCoin/GroestlCoin,MarcoFalke/bitcoin,anditto/bitcoin,qtumproject/qtum,anditto/bitcoin,jonasschnelli/bitcoin,practicalswift/bitcoin,cdecker/bitcoin,fanquake/bitcoin,namecoin/namecoin-core,pataquets/namecoin-core,mm-s/bitcoin,lateminer/bitcoin,pstratem/bitcoin,instagibbs/bitcoin,fanquake/bitcoin,AkioNak/bitcoin,litecoin-project/litecoin,practicalswift/bitcoin,mruddy/bitcoin,bitcoin/bitcoin,particl/particl-core,prusnak/bitcoin,EthanHeilman/bitcoin,AkioNak/bitcoin,litecoin-project/litecoin,jonasschnelli/bitcoin,sstone/bitcoin,tecnovert/particl-core,alecalve/bitcoin,andreaskern/bitcoin,n1bor/bitcoin,instagibbs/bitcoin,jamesob/bitcoin,jnewbery/bitcoin,ajtowns/bitcoin,ElementsProject/elements,domob1812/bitcoin,jamesob/bitcoin,n1bor/bitcoin,anditto/bitcoin,sipsorcery/bitcoin,alecalve/bitcoin,EthanHeilman/bitcoin,bitcoinsSG/bitcoin,Xekyo/bitcoin,bitcoinknots/bitcoin,cdecker/bitcoin,bitcoin/bitcoin,mm-s/bitcoin,namecoin/namecore,domob1812/bitcoin,instagibbs/bitcoin,jambolo/bitcoin,bitcoin/bitcoin,JeremyRubin/bitcoin,mruddy/bitcoin,rnicoll/bitcoin,Xekyo/bitcoin,Sjors/bitcoin,mruddy/bitcoin,JeremyRubin/bitcoin,ajtowns/bitcoin,dscotese/bitcoin,cdecker/bitcoin,GroestlCoin/GroestlCoin,jambolo/bitcoin,GroestlCoin/GroestlCoin,domob1812/namecore,rnicoll/dogecoin,litecoin-project/litecoin,practicalswift/bitcoin,GroestlCoin/bitcoin,jamesob/bitcoin,n1bor/bitcoin,MeshCollider/bitcoin,qtumproject/qtum,domob1812/bitcoin,jlopp/statoshi,practicalswift/bitcoin,bitcoinsSG/bitcoin,rnicoll/bitcoin,domob1812/namecore,kallewoof/bitcoin,jlopp/statoshi,instagibbs/bitcoin,AkioNak/bitcoin,jnewbery/bitcoin,namecoin/namecore,MeshCollider/bitcoin,rnicoll/bitcoin,achow101/bitcoin,jonasschnelli/bitcoin,ElementsProject/elements,AkioNak/bitcoin,ajtowns/bitcoin,litecoin-project/litecoin,pataquets/namecoin-core,anditto/bitcoin,pataquets/namecoin-core,pataquets/namecoin-core,dscotese/bitcoin,yenliangl/bitcoin,ElementsProject/elements,domob1812/namecore,mm-s/bitcoin,jlopp/statoshi,sipsorcery/bitcoin,apoelstra/bitcoin,yenliangl/bitcoin,JeremyRubin/bitcoin,kallewoof/bitcoin,particl/particl-core,apoelstra/bitcoin,mruddy/bitcoin,tecnovert/particl-core,kallewoof/bitcoin,andreaskern/bitcoin,JeremyRubin/bitcoin,sstone/bitcoin,andreaskern/bitcoin,ajtowns/bitcoin,GroestlCoin/bitcoin,apoelstra/bitcoin,mm-s/bitcoin,n1bor/bitcoin,midnightmagic/bitcoin,cdecker/bitcoin,kallewoof/bitcoin,midnightmagic/bitcoin,Xekyo/bitcoin,namecoin/namecoin-core,cdecker/bitcoin,GroestlCoin/GroestlCoin,rnicoll/dogecoin,tecnovert/particl-core,sipsorcery/bitcoin,bitcoinsSG/bitcoin,tecnovert/particl-core,midnightmagic/bitcoin,yenliangl/bitcoin,fujicoin/fujicoin,achow101/bitcoin,pstratem/bitcoin,bitcoinknots/bitcoin,EthanHeilman/bitcoin,midnightmagic/bitcoin,GroestlCoin/bitcoin,sipsorcery/bitcoin,bitcoin/bitcoin,domob1812/bitcoin,domob1812/bitcoin,andreaskern/bitcoin,n1bor/bitcoin,practicalswift/bitcoin,anditto/bitcoin,apoelstra/bitcoin,JeremyRubin/bitcoin,pataquets/namecoin-core,andreaskern/bitcoin,achow101/bitcoin,bitcoinknots/bitcoin,jonasschnelli/bitcoin,lateminer/bitcoin,sstone/bitcoin,jamesob/bitcoin,MeshCollider/bitcoin,tecnovert/particl-core,fanquake/bitcoin,EthanHeilman/bitcoin,MeshCollider/bitcoin,MeshCollider/bitcoin,sstone/bitcoin,jlopp/statoshi,dscotese/bitcoin,pstratem/bitcoin,alecalve/bitcoin,alecalve/bitcoin,pstratem/bitcoin,fanquake/bitcoin,litecoin-project/litecoin,namecoin/namecore,mruddy/bitcoin,Sjors/bitcoin,apoelstra/bitcoin,mruddy/bitcoin,tecnovert/particl-core,jambolo/bitcoin,ajtowns/bitcoin,fujicoin/fujicoin,midnightmagic/bitcoin,bitcoinknots/bitcoin,lateminer/bitcoin,rnicoll/dogecoin,jamesob/bitcoin,MarcoFalke/bitcoin,prusnak/bitcoin,bitcoinsSG/bitcoin,particl/particl-core,GroestlCoin/GroestlCoin,alecalve/bitcoin,domob1812/namecore,instagibbs/bitcoin,ElementsProject/elements,midnightmagic/bitcoin,MarcoFalke/bitcoin,rnicoll/bitcoin,fujicoin/fujicoin,dscotese/bitcoin,bitcoinsSG/bitcoin,qtumproject/qtum,ElementsProject/elements,rnicoll/bitcoin,lateminer/bitcoin,sstone/bitcoin,fujicoin/fujicoin,jonasschnelli/bitcoin,fanquake/bitcoin,Sjors/bitcoin,bitcoinsSG/bitcoin,fujicoin/fujicoin,jlopp/statoshi,achow101/bitcoin,prusnak/bitcoin,Sjors/bitcoin,jambolo/bitcoin,MeshCollider/bitcoin,MarcoFalke/bitcoin,kallewoof/bitcoin,domob1812/namecore,ElementsProject/elements,Xekyo/bitcoin,rnicoll/bitcoin,MarcoFalke/bitcoin,bitcoin/bitcoin,AkioNak/bitcoin,namecoin/namecore,kallewoof/bitcoin,EthanHeilman/bitcoin,fujicoin/fujicoin,qtumproject/qtum,anditto/bitcoin,yenliangl/bitcoin,Xekyo/bitcoin,fanquake/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,pstratem/bitcoin,namecoin/namecore,dscotese/bitcoin,JeremyRubin/bitcoin,achow101/bitcoin,namecoin/namecoin-core,jnewbery/bitcoin,prusnak/bitcoin,particl/particl-core,rnicoll/dogecoin,GroestlCoin/bitcoin,pstratem/bitcoin,GroestlCoin/bitcoin,bitcoinknots/bitcoin,practicalswift/bitcoin,Sjors/bitcoin,instagibbs/bitcoin,sstone/bitcoin,prusnak/bitcoin,GroestlCoin/bitcoin,sipsorcery/bitcoin,mm-s/bitcoin,n1bor/bitcoin,jlopp/statoshi