Complete CCPPization of CAM5 UW PBL scheme (diag_TKE)

[jimmielin]

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Originator(s):

Description (include the issue title, and the keyword ['closes', 'fixes', 'resolves'] followed by the issue number):

Describe any changes made to build system:

Describe any changes made to the namelist:

List any changes to the defaults for the input datasets (e.g. boundary datasets):

List all files eliminated and why:

List all files added and what they do:

A       cime_config/testdefs/testmods_dirs/cam/outfrq_uw_vdiff_derecho/shell_commands
A       cime_config/testdefs/testmods_dirs/cam/outfrq_uw_vdiff_derecho/user_nl_cam
  - add new uw_vdiff test for derecho/gnu

List all existing files that have been modified, and describe the changes:
(Helpful git command: git diff --name-status development...<your_branch_name>)

M       cime_config/testdefs/testlist_cam.xml
  - add new uw_vdiff test for derecho/gnu (snapshot test)

M       src/dynamics/none/stepon.F90
  - override is_first_timestep to always false, since CAM snapshots never write out
    the first timestep.

M       src/control/cam_comp.F90
  - move stepon_timestep_init to after MUSICA temporary initialization, since
    stepon_timestep_init in null dycore will set is_first_timestep to false but
    MUSICA initialization needs to know the "true" first timestep state.

M       src/data/registry.xml
  - add registry variables for UW PBL

M       src/physics/utils/physics_data.F90
  - also try cnst_ prefix when reading constituent-dimensioned variables

If there are new failures (compared to the test/existing-test-failures.txt file),
have them OK'd by the gatekeeper, note them here, and add them to the file.
If there are baseline differences, include the test and the reason for the
diff. What is the nature of the change? Roundoff?

derecho/intel/aux_sima:

derecho/gnu/aux_sima:

derecho/nvhpc/aux_sima:

If this changes climate describe any run(s) done to evaluate the new
climate in enough detail that it(they) could be reproduced:

CAM-SIMA date used for the baseline comparison tests if different than latest: