feat: combine and merge bodies

[jacobrkerstetter]

Description

• for use in the MD workflow with combining surface bodies
• combines two or more bodies with the SC Combine.Merge operation

Issue linked

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

❌ Patch coverage is 94.11765% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 94.50%. Comparing base (99370ab) to head (5f8a472).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ansys/geometry/core/designer/body.py	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2282      +/-   ##
==========================================
- Coverage   94.50%   94.50%   -0.01%     
==========================================
  Files         169      169              
  Lines       11109    11126      +17     
==========================================
+ Hits        10499    10515      +16     
- Misses        610      611       +1     

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[RobPasMue]

Once the note is added - LGTM! Thank you @jacobrkerstetter

[RobPasMue]

LGTM!