main oslo-aero bugfixes and compset/testing updates for noresm2.1 release

[mvertens]

cam_cesm2_1_rel_05-Nor_v1.0.6: oslo-aero bugfixes and new compsets and testing

Summary: main oslo-aero bugfixes and compset/testing updates for noresm2.1 release

Contributors: @mvertens, @gold2718, @DirkOlivie @oyvindseland

Reviewers: @gold2718

Purpose of changes:

• 24

• 109

• 114

Github PR URL: https://github.com/NorESMhub/CAM/pull/116

Changes made to build system: Put in new noresm flag that is triggered by compset

Changes made to the namelist: None

Changes to the defaults for the boundary datasets: None

Substantial timing or memory changes: None

The main features in this PR are:

• bug fixes in the following two routines that now permit bfb answers with different pes
  • src/chemistry/oslo_aero/hetfrz_classnuc_oslo.F90
  • src/chemistry/oslo_aero/koagsub.F90
• updates to config_component.xml and config_compsets.xml to simplify the definition of compsets and remove deprecated ones
• cleanup of config_compsets.xml so that domain files are now set in cime config_grids.xml rather than in cam's config_compsets.xml

NOTE: this PR will also require an accompanying PR in CIME.

Testing: ERP_D_Ln9.f19_f19_mtn14.QPC6.betzy_intel.cam-outfrq9s ERP_Ln9.f19_f19_mtn14.NF1850norbc.betzy_intel.cam-outfrq9s

Issues addressed by this PR: fixes #24 closes #106 fixes #109 closes #114

[mvertens]

@gold2718 - I'm wondering if I should bring my changes for making AEROCOM a namelist variable and simplifying the cppdefs now or in a new PR.

[oyvindseland]

For my part I think it is fine to bring it 2.1 unless it result in a substantial delay of the release.

[mvertens]

@oyvindseland - thanks. I agree. I was just asking if it should be part of this particular PR or a new PR.

[gold2718]

@gold2718 - I'm wondering if I should bring my changes for making AEROCOM a namelist variable and simplifying the cppdefs now or in a new PR.

New PR if possible.

[mvertens]

Thanks. I agree about the new PR.

[mvertens]

removed Externals_CAM.cfg