added _Sequence to deal with Sized sequences with getitem
added _Sequence to deal with Sized sequences with getitem

gmarkall/numba,numba/numba,cpcloud/numba,seibert/numba,cpcloud/numba,stonebig/numba,numba/numba,numba/numba,gmarkall/numba,stuartarchibald/numba,IntelLabs/numba,IntelLabs/numba,seibert/numba,stonebig/numba,IntelLabs/numba,stuartarchibald/numba,stonebig/numba,stuartarchibald/numba,stuartarchibald/numba,stonebig/numba,IntelLabs/numba,gmarkall/numba,gmarkall/numba,seibert/numba,IntelLabs/numba,numba/numba,seibert/numba,seibert/numba,cpcloud/numba,numba/numba,cpcloud/numba,gmarkall/numba,cpcloud/numba,stuartarchibald/numba,stonebig/numba