TST: Adding testing for lapack gttrf and gttrs
TST: Adding testing for lapack gttrf and gttrs

This commit begins the tests for lapack gttrf and gttrs

pizzathief/scipy,vigna/scipy,vigna/scipy,aeklant/scipy,grlee77/scipy,scipy/scipy,endolith/scipy,tylerjereddy/scipy,rgommers/scipy,matthew-brett/scipy,anntzer/scipy,mdhaber/scipy,matthew-brett/scipy,grlee77/scipy,pizzathief/scipy,Stefan-Endres/scipy,pizzathief/scipy,e-q/scipy,mdhaber/scipy,WarrenWeckesser/scipy,WarrenWeckesser/scipy,mdhaber/scipy,ilayn/scipy,aeklant/scipy,WarrenWeckesser/scipy,ilayn/scipy,ilayn/scipy,Stefan-Endres/scipy,endolith/scipy,zerothi/scipy,endolith/scipy,Stefan-Endres/scipy,anntzer/scipy,vigna/scipy,andyfaff/scipy,matthew-brett/scipy,nmayorov/scipy,pizzathief/scipy,anntzer/scipy,zerothi/scipy,tylerjereddy/scipy,endolith/scipy,person142/scipy,mdhaber/scipy,e-q/scipy,person142/scipy,rgommers/scipy,Stefan-Endres/scipy,grlee77/scipy,endolith/scipy,zerothi/scipy,e-q/scipy,zerothi/scipy,anntzer/scipy,perimosocordiae/scipy,zerothi/scipy,perimosocordiae/scipy,Stefan-Endres/scipy,anntzer/scipy,rgommers/scipy,ilayn/scipy,endolith/scipy,perimosocordiae/scipy,e-q/scipy,anntzer/scipy,matthew-brett/scipy,grlee77/scipy,Eric89GXL/scipy,nmayorov/scipy,nmayorov/scipy,vigna/scipy,Eric89GXL/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,andyfaff/scipy,Stefan-Endres/scipy,scipy/scipy,grlee77/scipy,ilayn/scipy,nmayorov/scipy,WarrenWeckesser/scipy,scipy/scipy,andyfaff/scipy,rgommers/scipy,scipy/scipy,nmayorov/scipy,pizzathief/scipy,andyfaff/scipy,mdhaber/scipy,matthew-brett/scipy,aeklant/scipy,Eric89GXL/scipy,WarrenWeckesser/scipy,zerothi/scipy,perimosocordiae/scipy,andyfaff/scipy,tylerjereddy/scipy,rgommers/scipy,Eric89GXL/scipy,Eric89GXL/scipy,perimosocordiae/scipy,perimosocordiae/scipy,tylerjereddy/scipy,person142/scipy,aeklant/scipy,aeklant/scipy,scipy/scipy,mdhaber/scipy,person142/scipy,tylerjereddy/scipy,e-q/scipy,andyfaff/scipy,vigna/scipy,ilayn/scipy,person142/scipy,scipy/scipy