Fixed bug in ele_neigh_i_tensor
Fixed bug in ele_neigh_i_tensor

Added ele_neigh_i_* to interface ele_neigh

Added missing ele_faces_tensor and node_neigh_tensor to their appropriate interfaces

New interface face_neigh which returns the neighbouring face of a given face. The incoming face number is returned if no neighbour face exists.




FluidityProject/multifluids,FluidityProject/multifluids,FluidityProject/multifluids,FluidityProject/multifluids