BENCH: add asv nanfunction benchmarks
BENCH: add asv nanfunction benchmarks

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