Restore vc141 support
Restore vc141 support

pdebuyl/numpy,jakirkham/numpy,mhvk/numpy,seberg/numpy,seberg/numpy,numpy/numpy,mattip/numpy,endolith/numpy,charris/numpy,mattip/numpy,anntzer/numpy,endolith/numpy,rgommers/numpy,endolith/numpy,jakirkham/numpy,mhvk/numpy,jakirkham/numpy,rgommers/numpy,mattip/numpy,pdebuyl/numpy,anntzer/numpy,seberg/numpy,mhvk/numpy,mattip/numpy,seberg/numpy,mhvk/numpy,rgommers/numpy,numpy/numpy,numpy/numpy,jakirkham/numpy,charris/numpy,anntzer/numpy,numpy/numpy,charris/numpy,anntzer/numpy,pdebuyl/numpy,endolith/numpy,rgommers/numpy,charris/numpy,mhvk/numpy,pdebuyl/numpy,jakirkham/numpy