Add microphysics

[codecov[bot]]

Codecov Report

Merging #84 (99c4be3) into main (143ba9f) will increase coverage by 0.43%. The diff coverage is 97.53%.

@@            Coverage Diff             @@
##             main      #84      +/-   ##
==========================================
+ Coverage   96.23%   96.66%   +0.43%     
==========================================
  Files          29       32       +3     
  Lines        1116     1260     +144     
==========================================
+ Hits         1074     1218     +144     
  Misses         42       42              

Files Changed	Coverage Δ
src/harp/absorber.hpp	100.00% <ø> (ø)
src/opacity/Giants/freedman.hpp	0.00% <0.00%> (ø)
src/opacity/correlatedk_absorber.hpp	0.00% <0.00%> (ø)
src/opacity/Giants/microwave/mwr_absorbers.hpp	33.33% <33.33%> (ø)
src/microphysics/microphysical_scheme.hpp	100.00% <100.00%> (ø)
src/microphysics/microphysics.hpp	100.00% <100.00%> (ø)
src/opacity/Giants/hydrogen_cia.hpp	100.00% <100.00%> (ø)
src/opacity/hitran_absorber.hpp	100.00% <100.00%> (ø)
src/utils/parameter_map.hpp	85.71% <100.00%> (ø)
tests/test_impl.cpp	97.89% <100.00%> (ø)
... and 2 more