Make Version _PATCH_EXTRA only contain the RC
Make Version _PATCH_EXTRA only contain the RC

_VERSION_PATCH_EXTRA only contains the "RC0".
_VERSION_FULL still contain the full git describe string.

Kitware/VeloView,Kitware/VeloView,Kitware/VeloView,Kitware/VeloView,Kitware/VeloView