[Unsat] Renamed classes and made other minor changes according to Dima's comment

...pillaryPressure/BrookCoreyCapillaryPressureSaturation.cpp

...CapillaryPressure/BrookCoreyCapillaryPressureSaturation.h

...dProperty/CapillaryPressure/CapillaryPressureSaturation.h

...operty/CapillaryPressure/CreateCapillaryPressureModel.cpp

...llaryPressure/vanGenuchtenCapillaryPressureSaturation.cpp

...pillaryPressure/vanGenuchtenCapillaryPressureSaturation.h

MathLib/MathTools.h

Tests/MaterialLib/TestCapillaryPressureSaturationModel.cpp