Make Blob:D cmp/lt/gt/le/ge Blob:D 3800x faster
Make Blob:D cmp/lt/gt/le/ge Blob:D 3800x faster

- for two 10K identical buffers, faster still for inequal buffers
- implement Blob:D.COMPARE helper method
- which checks number of elements before checking contents
- no longer allocates copies of both buffers, so more memory friendly

softmoth/rakudo,jonathanstowe/rakudo,softmoth/rakudo,usev6/rakudo,tony-o/rakudo,raydiak/rakudo,b2gills/rakudo,zostay/rakudo,ab5tract/rakudo,ab5tract/rakudo,awwaiid/rakudo,sjn/rakudo,samcv/rakudo,tbrowder/rakudo,nbrown/rakudo,labster/rakudo,samcv/rakudo,softmoth/rakudo,tbrowder/rakudo,labster/rakudo,Gnouc/rakudo,nbrown/rakudo,azawawi/rakudo,Gnouc/rakudo,tbrowder/rakudo,labster/rakudo,tony-o/rakudo,azawawi/rakudo,sjn/rakudo,jonathanstowe/rakudo,softmoth/rakudo,azawawi/rakudo,nbrown/rakudo,nbrown/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,b2gills/rakudo,ab5tract/rakudo,nbrown/rakudo,samcv/rakudo,rakudo/rakudo,salortiz/rakudo,MasterDuke17/rakudo,zostay/rakudo,azawawi/rakudo,Gnouc/rakudo,jonathanstowe/rakudo,salortiz/rakudo,usev6/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,sjn/rakudo,rakudo/rakudo,raydiak/rakudo,salortiz/rakudo,MasterDuke17/rakudo,jonathanstowe/rakudo,raydiak/rakudo,lucasbuchala/rakudo,samcv/rakudo,samcv/rakudo,rakudo/rakudo,awwaiid/rakudo,Gnouc/rakudo,zostay/rakudo,usev6/rakudo,salortiz/rakudo,softmoth/rakudo,raydiak/rakudo,rakudo/rakudo,ab5tract/rakudo,jonathanstowe/rakudo,rakudo/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,tony-o/rakudo,b2gills/rakudo,MasterDuke17/rakudo,tony-o/rakudo,usev6/rakudo,Gnouc/rakudo,sjn/rakudo,zostay/rakudo,b2gills/rakudo,Gnouc/rakudo,lucasbuchala/rakudo,rakudo/rakudo,azawawi/rakudo,labster/rakudo,b2gills/rakudo,tony-o/rakudo,labster/rakudo,sjn/rakudo,lucasbuchala/rakudo,salortiz/rakudo,tbrowder/rakudo,labster/rakudo,awwaiid/rakudo,MasterDuke17/rakudo,ab5tract/rakudo,awwaiid/rakudo,awwaiid/rakudo,tony-o/rakudo,nbrown/rakudo,salortiz/rakudo,usev6/rakudo