Support InstanceReferences filter for Data Modeling

[erlendvollset]

Description

Please describe the change you have made.

Checklist:

• Tests added/updated.
• Documentation updated. Documentation is generated from docstrings - these must be updated according to your change.
  If a new method has been added it should be referenced in cognite.rst in order to generate docs based on its docstring.
• Changelog updated in CHANGELOG.md.
• Version bumped. If triggering a new release is desired, bump the version number in _version.py and pyproject.toml per semantic versioning.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.49%. Comparing base (b040e27) to head (eddb7ce).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2081      +/-   ##
==========================================
- Coverage   90.50%   90.49%   -0.01%     
==========================================
  Files         141      141              
  Lines       22558    22566       +8     
==========================================
+ Hits        20415    20421       +6     
- Misses       2143     2145       +2     

Files with missing lines	Coverage Δ
cognite/client/_api/data_modeling/instances.py	88.41% <ø> (+0.23%)	⬆️
cognite/client/_version.py	100.00% <100.00%> (ø)
cognite/client/data_classes/filters.py	95.62% <100.00%> (-0.20%)	⬇️

... and 2 files with indirect coverage changes

[haakonvt]

The docs/source/filters.rst file needs to be updated