Add SFC -> SOL mapping for fields with non-zero levelist to IFS2MARS

[tweska]

• Maps all fields with levtype = sfc and levelist != 0 to levtype = sol in IFS2MARS before it enters the Multio pipeline.
• Removes call to legacy MARS2MARS from encode action. MARS2MARS should not be used by models to fix their metadata.

This PR addresses the same problem as #294 more general and at an earlier point in the pipeline.

Note: these changes are also in hotfix/2.10.4

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.01%. Comparing base (bcfe78e) to head (86d19ea).

Files with missing lines	Patch %	Lines
src/multiom/core/common/enumerators_mod.F90	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #296      +/-   ##
===========================================
- Coverage    33.02%   33.01%   -0.02%     
===========================================
  Files          409      409              
  Lines        43448    43440       -8     
  Branches      1978     1976       -2     
===========================================
- Hits         14348    14341       -7     
+ Misses       29100    29099       -1     

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