Change behavior of include to only include the requested fields

[dgarros]

Fixes #192

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@             Coverage Diff             @@
##           develop     #205      +/-   ##
===========================================
- Coverage    68.03%   64.71%   -3.33%     
===========================================
  Files           82       82              
  Lines         7370     7368       -2     
  Branches      1440     1439       -1     
===========================================
- Hits          5014     4768     -246     
- Misses        1984     2222     +238     
- Partials       372      378       +6     

Flag	Coverage Δ
integration-tests	?
python-3.10	43.30% <100.00%> (+0.03%)	⬆️
python-3.11	43.30% <100.00%> (+0.03%)	⬆️
python-3.12	43.30% <100.00%> (+0.03%)	⬆️
python-3.13	43.30% <100.00%> (+0.03%)	⬆️
python-3.9	41.69% <100.00%> (-0.02%)	⬇️
python-filler-3.12	24.07% <0.00%> (+<0.01%)	⬆️

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Files with missing lines	Coverage Δ
infrahub_sdk/node.py	73.46% <100.00%> (-4.28%)	⬇️

... and 8 files with indirect coverage changes