Streamline Buf.subbuf a bit more
Streamline Buf.subbuf a bit more

- make it a multi
- use helper subs for readability
- make sure all is done as natively as possible
- depending on parameters, makes subbuf between 1.2x to 2.5x as fast

tony-o/rakudo,softmoth/rakudo,labster/rakudo,labster/rakudo,softmoth/rakudo,MasterDuke17/rakudo,tony-o/rakudo,labster/rakudo,nbrown/rakudo,tbrowder/rakudo,tbrowder/rakudo,Gnouc/rakudo,rakudo/rakudo,tony-o/rakudo,labster/rakudo,nbrown/rakudo,tony-o/rakudo,rakudo/rakudo,labster/rakudo,nbrown/rakudo,MasterDuke17/rakudo,tony-o/rakudo,MasterDuke17/rakudo,salortiz/rakudo,labster/rakudo,Gnouc/rakudo,salortiz/rakudo,rakudo/rakudo,MasterDuke17/rakudo,Gnouc/rakudo,nbrown/rakudo,softmoth/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,nbrown/rakudo,nbrown/rakudo,rakudo/rakudo,softmoth/rakudo,tony-o/rakudo,salortiz/rakudo,Gnouc/rakudo,tbrowder/rakudo,Gnouc/rakudo,tbrowder/rakudo,tbrowder/rakudo,salortiz/rakudo,rakudo/rakudo,tbrowder/rakudo,softmoth/rakudo,Gnouc/rakudo,salortiz/rakudo,rakudo/rakudo,salortiz/rakudo