Cleanup constants in all physics

[climbfuji]

samfdeepcnv_run should get its various physical constants through the argument list as per CCPP requirements.

[grantfirl]

also samfshalcnv_run

[climbfuji]

also gfdlmp_{init,run}

[climbfuji]

this will also be true for the CAPS New Tiedtke physics scheme cu_ntiedtke.F90 (see PR #201)

[climbfuji]

This applies to many other physics schemes, someone should go through all of them and clean up. Push some common ones (rainmin, ...) to physcons.F90 and pass through argument list.

[climbfuji]

See also #245

[climbfuji]

See also #304 and #318.

Also, subroutines called by satmedmfvdif(q) use imported constants (the CCPP entry points do not).

[climbfuji]

This catch-all issue for importing constants instead of passing them via the argument list doesn't help. There are many issues related to this problem on a per-scheme basis, which makes more sense.