ENH: distutils: improve windows autoconfiguration
ENH: distutils: improve windows autoconfiguration

Autoconfigure libraries and headers when conda is detected
on the path. Also support copenblas and clapack when found.

pizzathief/numpy,simongibbons/numpy,abalkin/numpy,seberg/numpy,abalkin/numpy,WarrenWeckesser/numpy,madphysicist/numpy,numpy/numpy,grlee77/numpy,grlee77/numpy,rgommers/numpy,simongibbons/numpy,endolith/numpy,WarrenWeckesser/numpy,mattip/numpy,pizzathief/numpy,simongibbons/numpy,gfyoung/numpy,mhvk/numpy,anntzer/numpy,numpy/numpy,madphysicist/numpy,mhvk/numpy,grlee77/numpy,pdebuyl/numpy,mattip/numpy,pbrod/numpy,grlee77/numpy,anntzer/numpy,madphysicist/numpy,grlee77/numpy,pdebuyl/numpy,ahaldane/numpy,WarrenWeckesser/numpy,charris/numpy,anntzer/numpy,mattip/numpy,mhvk/numpy,endolith/numpy,Eric89GXL/numpy,charris/numpy,Eric89GXL/numpy,pbrod/numpy,gfyoung/numpy,jakirkham/numpy,WarrenWeckesser/numpy,pizzathief/numpy,ahaldane/numpy,MSeifert04/numpy,jorisvandenbossche/numpy,pdebuyl/numpy,mhvk/numpy,jorisvandenbossche/numpy,mattip/numpy,pdebuyl/numpy,simongibbons/numpy,numpy/numpy,jorisvandenbossche/numpy,mhvk/numpy,charris/numpy,madphysicist/numpy,MSeifert04/numpy,pizzathief/numpy,Eric89GXL/numpy,pbrod/numpy,shoyer/numpy,MSeifert04/numpy,MSeifert04/numpy,gfyoung/numpy,endolith/numpy,pbrod/numpy,jakirkham/numpy,shoyer/numpy,seberg/numpy,shoyer/numpy,jakirkham/numpy,jorisvandenbossche/numpy,charris/numpy,jakirkham/numpy,seberg/numpy,anntzer/numpy,jakirkham/numpy,shoyer/numpy,tynn/numpy,rgommers/numpy,tynn/numpy,madphysicist/numpy,jorisvandenbossche/numpy,tynn/numpy,endolith/numpy,ahaldane/numpy,pbrod/numpy,Eric89GXL/numpy,pizzathief/numpy,seberg/numpy,ahaldane/numpy,simongibbons/numpy,MSeifert04/numpy,abalkin/numpy,ahaldane/numpy,shoyer/numpy,rgommers/numpy,WarrenWeckesser/numpy,rgommers/numpy,numpy/numpy