feat: Added API GetTestPointProperties

[anskpetsche]

Description

Added function get_test_point_props() in Layer class, added new layer type GetTestPointPropertiesRequest and added new unit tests to test_layer.py

Issue linked

#578

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

Attention: Patch coverage is 64.51613% with 11 lines in your changes missing coverage. Please review.

Project coverage is 60.89%. Comparing base (0094744) to head (9893a08).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/ansys/sherlock/core/types/layer_types.py	75.00%	6 Missing ⚠️
src/ansys/sherlock/core/layer.py	28.57%	5 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #587   +/-   ##
=======================================
  Coverage   60.88%   60.89%           
=======================================
  Files          21       21           
  Lines        5487     5516   +29     
=======================================
+ Hits         3341     3359   +18     
- Misses       2146     2157   +11     

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