Standardize ordering of ccpp_error_code and ccpp_error_message

[peverwhee]

Description

The framework sometimes uses "errcode, errmsg" in the calling list and sometimes has "errmsg, errcode". It would be nice if this was consistent.

The NCAR SEs are leaning towards "errcode, errmsg", but are happy either way.

Solution

Modify all calling lists (in generated code and in static src code) to adhere to ordering we decide.

[climbfuji]

In the UFS, it's consistently errmsg, errflg

Example: https://github.com/ufs-community/ccpp-physics/blob/ufs/dev/physics/CONV/Grell_Freitas/cu_gf_driver.F90

[peverwhee]

@DomHeinzeller OK, sounds like it'll be easiest to keep it in that order for the framework then. That's fine by me!