Make the name of a CodeLibrary public
Make the name of a CodeLibrary public

There will be various places in the CUDA target where it will be helpful
to get the name of a CodeLibrary, so this commit makes it a public
property.

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