Update of gitignore
Update of gitignore


Former-commit-id: 89f470781861485c85e502f1cabbec422f7a76a7
Former-commit-id: d83b4e3dde975a689705cb38a34ea604cebf939b
TomTranter/OpenPNM,stadelmanma/OpenPNM,amdouglas/OpenPNM,amdouglas/OpenPNM,PMEAL/OpenPNM