Add addrspace in name of CPointer and add docstring
Add addrspace in name of CPointer and add docstring

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