ENH: Initial integration of IHCantrabria wave functionality

- Wave models significantly restructured and refactored into a hierarchy of run-time selecatable models
- Gravity no longer hard-coded
- Ability to use any direction as the gravity direction
- Boundary conditions simplified and take reference to the wave model
  - removes a lot of code duplication and new code is ~30% faster
- Removed unused functions

Requires further testing
- Restart behaviour needs to be addressed

integration/OpenCFD/code/waveModel/Make/files

@@ -0,0 +1,18 @@
+waveModel/waveModel.C
+waveModel/waveModelNew.C
+
+waveGenerationModels/base/waveGenerationModel/waveGenerationModel.C
+waveGenerationModels/base/regularWaveModel/regularWaveModel.C
+waveGenerationModels/base/solitaryWaveModel/solitaryWaveModel.C
+waveGenerationModels/derived/Boussinesq/BoussinesqWaveModel.C
+waveGenerationModels/derived/cnoidal/cnoidalWaveModel.C
+waveGenerationModels/derived/StokesII/StokesIIWaveModel.C
+waveGenerationModels/derived/StokesI/StokesIWaveModel.C
+waveGenerationModels/derived/StokesV/StokesVWaveModel.C
+
+
+waveAbsorptionModels/base/waveAbsorptionModel/waveAbsorptionModel.C
+waveAbsorptionModels/derived/shallowWaterAbsorption/shallowWaterAbsorption.C
+
+
+LIB = $(FOAM_USER_LIBBIN)/libwaveModels