Move MAM, MATRIX, CARMA, GAAS, ACHEM to separate repos

[mathomp4]

Supersedes #571

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This PR moves MAM, MATRIX, CARMA, GAAS, and GEOSachem to separate repos. There will be a few steps to get this in:

• Create MAM Repo → https://github.com/GEOS-ESM/MAM
• Create MATRIX Repo → https://github.com/GEOS-ESM/MATRIX
• Create CARMA Repo → https://github.com/GEOS-ESM/CARMA
• Create GAAS Repo → https://github.com/GEOS-ESM/GAAS
• Create ACHEM Repo → https://github.com/GEOS-ESM/ACHEM
• Remove directories from GEOSchem_GridComp → Move MAM, MATRIX, CARMA, GAAS, ACHEM to separate repos GEOSchem_GridComp#291
• Update GEOSgcm_App → Move MAM, MATRIX, CARMA, GAAS, ACHEM to separate repos GEOSgcm_App#686
• Test this in the naive way (usual AMIP)
• Release GEOSchem_GridComp v1.16.0
• Release MAM v1.0.0
• Release MATRIX v1.0.0
• Release CARMA v1.0.0 and v1.1.0
• Release GAAS v1.0.0
• Release ACHEM v1.0.0
• Update components.yaml here to point to tags not branches

[github-actions]

This PR is being prevented from merging because you have added one of our blocking labels: Contingent - DNA, Needs Lead Approval, Contingent -- Do Not Approve. You'll need to remove it before this PR can be merged.

[mmanyin]

I have verified zero-diff for this PR, wrt PCHEM and GMI simulations.