Cleanup/includes qmmm dev

[ape33]

This PR solves issue #391

[codecov]

Codecov Report

❌ Patch coverage is 7.69231% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.37%. Comparing base (2a4c796) to head (62917a8).
⚠️ Report is 8 commits behind head on qmmm-dev.

Files with missing lines	Patch %	Lines
src/waterModels/inter/interWaterCellList.cpp	0.00%	20 Missing ⚠️
src/setup/waterModelSetup.cpp	0.00%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           qmmm-dev     #408      +/-   ##
============================================
- Coverage     76.42%   76.37%   -0.06%     
============================================
  Files           316      316              
  Lines         13904    13915      +11     
  Branches       4461     4461              
============================================
+ Hits          10626    10627       +1     
- Misses         3216     3226      +10     
  Partials         62       62              

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