Things to do for final unified_ugwp_v1 code

[mdtoy]

The unified_ugwp drag scheme incorporates the cires_ugwp_v0 code (used in FV3GFSv16) and the GSL (RAP/HRRR) orographic drag suite. These two schemes are fully functional, however, the ugwp_v1 code by Valery Yudin, also included, but it needs a little more work. Below is a reminder of some of the issues that need to be addressed:

1. physics/cires_ugwp_module_v1.F90: Need to make sure when the call to calendar_ugwp occurs in your current code. In the init phase? If so, we may have to add the julian day calculation to the init phase of GFS_phys_time_vary_init subroutine.

There are also unresolved conversations in the PR (#55) which need to be addressed.