New listThermalMaps() API

[ansnfernand]

Create an API to list the thermal map files and their types

Checklist:

• Run unit tests and make sure they all pass
• 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
  N/A 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 and can be connected to using gRPC

[codecov]

Codecov Report

Attention: 15 lines in your changes are missing coverage. Please review.

Comparison is base (ebc3cac) 56.17% compared to head (df6190d) 56.14%.

Files	Patch %	Lines
src/ansys/sherlock/core/project.py	39.13%	14 Missing ⚠️
src/ansys/sherlock/core/errors.py	88.88%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #200      +/-   ##
==========================================
- Coverage   56.17%   56.14%   -0.04%     
==========================================
  Files          20       20              
  Lines        3217     3249      +32     
==========================================
+ Hits         1807     1824      +17     
- Misses       1410     1425      +15     

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