Added some helper methods to Tools - 4 methods for querying all existing pore and throat property and label names
Added some helper methods to Tools
- 4 methods for querying all existing pore and throat property and label names


Former-commit-id: 6682f7594d15c6885cc645985075aff40a0a083b
Former-commit-id: a34a17f56bce8cdcb3b7e9dcf847e4a810a9da0b
stadelmanma/OpenPNM,amdouglas/OpenPNM,amdouglas/OpenPNM,TomTranter/OpenPNM,PMEAL/OpenPNM