Cleaned up usage for submodel coeffDicts and comments in headers

...intermediate/submodels/IO/DataEntry/DataEntry/DataEntry.H

...c/DispersionModel/DispersionRASModel/DispersionRASModel.H

...ersionModel/GradientDispersionRAS/GradientDispersionRAS.H

...els/Kinematic/DispersionModel/NoDispersion/NoDispersion.H

...onModel/StochasticDispersionRAS/StochasticDispersionRAS.H

...ntermediate/submodels/Kinematic/DragModel/NoDrag/NoDrag.H

...ate/submodels/Kinematic/DragModel/SphereDrag/SphereDrag.H

...ubmodels/Kinematic/WallInteractionModel/Rebound/Rebound.C

...ubmodels/Kinematic/WallInteractionModel/Rebound/Rebound.H

...onModel/StandardWallInteraction/StandardWallInteraction.C

...onModel/StandardWallInteraction/StandardWallInteraction.H

...eractionModel/WallInteractionModel/WallInteractionModel.C

...eractionModel/WallInteractionModel/WallInteractionModel.H

...ting/CompositionModel/CompositionModel/CompositionModel.C

...ting/CompositionModel/CompositionModel/CompositionModel.H

...sitionModel/SingleMixtureFraction/SingleMixtureFraction.C

...sitionModel/SingleMixtureFraction/SingleMixtureFraction.H

...nstantRateDevolatilisation/ConstantRateDevolatilisation.C

...nstantRateDevolatilisation/ConstantRateDevolatilisation.H

...g/MassTransferModel/MassTransferModel/MassTransferModel.C