grainInteraction → grainInteraction Relation

File in src/Interaction/grainInteraction	Includes file in src/Interaction/grainInteraction/grainInteraction
grainInteractionsLinearModels.cpp	grainInteraction.hpp
grainInteractionsNonLinearModels.cpp	grainInteraction.hpp
grainInteractionsNonLinearModModels.cpp	grainInteraction.hpp