ENH: left and right, non-byte aligned shift_transform logic are simplified and avoided memcopy, extra shift and bitwise or, by allowing overlapps. a bit faster.
ENH: left and right, non-byte aligned shift_transform logic are simplified and avoided memcopy, extra shift and bitwise or, by allowing overlapps. a bit faster.

ParBLiSS/kmerind,ParBLiSS/kmerind,ParBLiSS/kmerind,ParBLiSS/kmerind,ParBLiSS/kmerind,ParBLiSS/kmerind