thixotropicViscosity → filmViscosityModel Relation

File in src/regionModels/surfaceFilmModels/submodels/thermo/filmViscosityModel/thixotropicViscosity	Includes file in src/regionModels/surfaceFilmModels/submodels/thermo/filmViscosityModel/filmViscosityModel
thixotropicViscosity.H	filmViscosityModel.H