Merge branch 'feature/composite-scheme' into feature/composite-scheme-sources

src/language/modules/CompositeSchemeModule.cpp

src/scheme/CMakeLists.txt

src/scheme/CellbyCellLimitation.hpp

src/scheme/LimitationTools.hpp

src/scheme/RoeFluxFormEulerianCompositeSolver_v2.cpp

src/scheme/RoeFluxFormEulerianCompositeSolver_v2.hpp