all-sky ATMS radiance assimilation and using surface-sensitive ATMS radiances

[gmao-yzhu]

This PR is to achieve the following purposes:

1. Use a common beamwidth for all channels,
2. Change ATMS radiance usage in GEOS from clear-sky approach to all-sky approach.
3. Add the assimilation of surface-sensitive channels 1-4 and 16 in GEOS.
4. Add cloud seed for rain and snow.
5. Code changes on DA side for cloud fraction and overlap are also included (Wei, Jianjun, me have tested the impact on OmFs of CrIS, GMI, ATMS but not turned on yet).

[github-actions]

Label error. Requires at least 1 of: 0 diff, 0 diff trivial, Non 0-diff, 0 diff structural, 0-diff trivial, Not 0-diff, 0-diff, automatic, 0-diff uncoupled. Found:

[gmao-wgu]

The code changes look good to me.