Added pade tests for int and complex list inputs
Added pade tests for int and complex list inputs

Int test: Makes sure that the Pade approximation between a float and int input of the same type yield the same coefficients.

Complex test: Uses test case found in paper that motivated need for complex Pade in the first place (DOI 10.1109/PESGM.2012.6344759) and checks with known solution.
vigna/scipy,zerothi/scipy,aarchiba/scipy,perimosocordiae/scipy,endolith/scipy,rgommers/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,mdhaber/scipy,zerothi/scipy,e-q/scipy,pizzathief/scipy,grlee77/scipy,endolith/scipy,aeklant/scipy,rgommers/scipy,scipy/scipy,zerothi/scipy,lhilt/scipy,jamestwebber/scipy,ilayn/scipy,arokem/scipy,matthew-brett/scipy,perimosocordiae/scipy,gertingold/scipy,mdhaber/scipy,WarrenWeckesser/scipy,perimosocordiae/scipy,anntzer/scipy,andyfaff/scipy,endolith/scipy,scipy/scipy,rgommers/scipy,anntzer/scipy,vigna/scipy,mdhaber/scipy,WarrenWeckesser/scipy,pizzathief/scipy,Eric89GXL/scipy,person142/scipy,pizzathief/scipy,Eric89GXL/scipy,andyfaff/scipy,person142/scipy,vigna/scipy,zerothi/scipy,anntzer/scipy,Stefan-Endres/scipy,tylerjereddy/scipy,person142/scipy,arokem/scipy,rgommers/scipy,grlee77/scipy,Stefan-Endres/scipy,grlee77/scipy,Eric89GXL/scipy,endolith/scipy,gertingold/scipy,matthew-brett/scipy,scipy/scipy,andyfaff/scipy,rgommers/scipy,nmayorov/scipy,arokem/scipy,andyfaff/scipy,nmayorov/scipy,jor-/scipy,matthew-brett/scipy,gertingold/scipy,vigna/scipy,e-q/scipy,scipy/scipy,jamestwebber/scipy,e-q/scipy,scipy/scipy,perimosocordiae/scipy,lhilt/scipy,endolith/scipy,gertingold/scipy,anntzer/scipy,lhilt/scipy,pizzathief/scipy,tylerjereddy/scipy,scipy/scipy,ilayn/scipy,pizzathief/scipy,endolith/scipy,aeklant/scipy,jamestwebber/scipy,ilayn/scipy,arokem/scipy,perimosocordiae/scipy,jor-/scipy,tylerjereddy/scipy,gertingold/scipy,WarrenWeckesser/scipy,e-q/scipy,andyfaff/scipy,grlee77/scipy,aeklant/scipy,lhilt/scipy,nmayorov/scipy,Stefan-Endres/scipy,aarchiba/scipy,grlee77/scipy,lhilt/scipy,matthew-brett/scipy,tylerjereddy/scipy,Stefan-Endres/scipy,aarchiba/scipy,jor-/scipy,andyfaff/scipy,anntzer/scipy,ilayn/scipy,Stefan-Endres/scipy,person142/scipy,person142/scipy,mdhaber/scipy,ilayn/scipy,jamestwebber/scipy,jamestwebber/scipy,Eric89GXL/scipy,Eric89GXL/scipy,Eric89GXL/scipy,mdhaber/scipy,Stefan-Endres/scipy,jor-/scipy,aeklant/scipy,tylerjereddy/scipy,matthew-brett/scipy,zerothi/scipy,nmayorov/scipy,vigna/scipy,aeklant/scipy,jor-/scipy,nmayorov/scipy,mdhaber/scipy,ilayn/scipy,aarchiba/scipy,aarchiba/scipy,WarrenWeckesser/scipy,arokem/scipy,anntzer/scipy,e-q/scipy,WarrenWeckesser/scipy,zerothi/scipy