Changes

Change "F_SCAM5" to "F_SCAM" and "-phys cam5" to "-phys default"

Change "F_SCAM5" to "F_SCAM" and "-phys cam5" to "-phys default"

Change "F_SCAM5" to "F_SCAM" and "-phys cam5" to "-phys default"

Updating the nelson's FFLAGS in config_compilers.xml

Revert "Updating the nelson's FFLAGS in config_compilers.xml"

This is possibly temporary to allow us to go back to the last state
of the compiler flags while we compile with gfortran 8.

This reverts commit c99918ee5a320c30300dd289e3de3b5e624b1e30.

I am committing a "manual cherry-pick" of git commit 1b238fe to the clubb_silhs_devel
branch.

Updating micro_p3_interface.F90 so that it compiles on Nelson with the gfortran compiler.

Adding w_up_in_cloud to the pbuf, which will eventually allow it to be ported
for use in another area of the model.

Adding statistical output for w_up_in_cloud (stat name W_UP_IN_CL_CLUBB).

The stat output for w_up_in_cloud should be on thermodynamic levels ('lev')
rather than momentum levels ('ilev').

I am fixing some of the statistical output level listings for variable CLUBB
variables. In other words, what should be on thermodynamic levels ('lev') vs.
what should be on momemtum levels ('ilev').

I am updating the nightly E3SM SCM scripts (for BOMEX, DYCOMS-II RF01,
and RICO) to work on Nelson for the E3SM V2 code.