feat: Added API import_parts_to_avl()

[ansnfernand]

Description

Added API import_parts_to_avl()

Issue linked

#390

Checklist:

• Run unit tests and make sure they all pass
  - Run tests without Sherlock running
  - Run tests with Sherlock GRPC connection
• Check and fix style errors
  - pre-commit command line check
  - Problems tab in PyCharm
• Bench test new/modified APIs by using and modifying the code in the example for the API method
• [] Add new classes to rst files, located at: \doc\source\api
• [] Generate documentation
• Verify the HTML. It gets generated at: \doc\build\html.
  - Open index.html
  - Click on "API Reference" at the top.
  - Verify HTML for API changes.
• Check that test code coverage is at least 80% when Sherlock is running
• Make sure that the title of the pull request follows Commit naming conventions (e.g. feat: adding new PySherlock command)

[codecov]

Codecov Report

❌ Patch coverage is 66.12022% with 62 lines in your changes missing coverage. Please review.
✅ Project coverage is 61.46%. Comparing base (2463dc1) to head (fc75d18).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ansys/sherlock/core/types/layer_types.py	66.90%	46 Missing ⚠️
src/ansys/sherlock/core/types/parts_types.py	61.11%	7 Missing ⚠️
src/ansys/sherlock/core/layer.py	40.00%	6 Missing ⚠️
src/ansys/sherlock/core/parts.py	57.14%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #617      +/-   ##
==========================================
+ Coverage   61.36%   61.46%   +0.09%     
==========================================
  Files          22       22              
  Lines        5700     5878     +178     
==========================================
+ Hits         3498     3613     +115     
- Misses       2202     2265      +63     

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