Submodule pointer update for ccpp-framework/ccpp-physics & option to run compile jobs of regression test suite only & -mcmodel=medium gnu.cmake option (also includes https://github.com/ufs-community/ufs-weather-model/pull/2142) (#2066)

* UFSWM - Add option to `rt.sh` to run compile-only tests
  * FV3 - Update submodule pointer (NOAA-EMC/fv3atm#747)
    * ccpp-physics - Update submodule pointer (ufs-community/ccpp-physics#150)
    * ccpp-framework - Update submodule pointer (NCAR/ccpp-framework#519)
* Update WM license and documentation logo
* Update GNU.cmake: -mcmodel=medium