Add build info to pytest_report_header

[Skylion007]

Motivation and Context

• This adds some additional debug info the pytest output (related to how habitat-sim was built). This is done by adding a special function called pytest_report_header to the conf_test file which then prints out a list of settings on the habitat_sim object and whether they are enabled or not.

After this change, the following info is prepended to the pytest report output:

C++ Build Info:
--audio_enabled: False
--built_with_bullet: True
--cuda_enabled: False
--vhacd_enabled: False

How Has This Been Tested

Types of changes

• Docs change / refactoring / dependency upgrade
• New feature (non-breaking change which adds functionality)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have completed my CLA (see CONTRIBUTING)
• I have added tests to cover my changes.
• All new and existing tests passed.

[Skylion007]

The python_lint flakes seem to related to a flake8 upgrade.

[aclegg3]

LGTM