BSK-185: Fixes case issue for builds with OpenCV on Linux

[scout-andrew]

• Tickets addressed: BSK Fix Linux builds with --opNav True #185
• Review: By commit
• Merge strategy: Merge (no squash)

Description

This implements the fix described in #185 .

Verification

After making the fix, Basilisk was built using
~/basilisk $python conanfile.py --opNav True
and tests were run using
~/basilisk/src $ python -m pytest .
Tests passed.

Documentation

Unknown and likely 0

Future work

This could be caught by making sure all build options are run through CI/CD on all platforms. Alternatively, BSK's codebase should check for case sensitivity when dealing with file system operations, such as loading data or during builds.

[schaubh]

@scout-andrew , I need you to sign a non-CU BSK contributor agreement to contribute code to BSK. Could you please email me so I can send you the PDF to fill out? We plan to integrate this process into GitHub, but for now it is still manual through me.

[schaubh]

All worked on my system and everything build without issue and all tests passed. Please add a quick note in bskReleaseNotes.rst on this fix. I provided a suggested statement.