Update gl support test to use glmark2 (New)

[tomli380576]

Resolved issues

This PR updates the 1_gl_support_* cases from unity_support_test to glmark2 since the former has not been updated for almost 10 years. This new test uses almost exactly the same logic as reboot_check_test #1677 except that it just throws exceptions to fail early instead of trying to catch them.

Documentation

We are checking 2 things in this test:

1. Is OpenGL version (from GL_VERSION) newer than 3.0? This requirement comes from gnome and GTK.
2. Is the DUT using a hardware renderer? This part is the same as reboot_check_test.py -g except that it exits as soon as something goes wrong

A new cli option has been added:
--glmark2-override: manually select the glmark2 binary to run. Caller is responsible for checking whether this binary exists.

Tests

Unit tests
https://certification.canonical.com/hardware/202411-36032/submission/445444/

[codecov]

Codecov Report

❌ Patch coverage is 91.20879% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 52.09%. Comparing base (e3775c5) to head (ed1cfcf).
⚠️ Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
providers/base/bin/gl_support.py	91.20%	3 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2087      +/-   ##
==========================================
+ Coverage   52.01%   52.09%   +0.08%     
==========================================
  Files         388      388              
  Lines       41794    41886      +92     
  Branches     7771     7794      +23     
==========================================
+ Hits        21738    21822      +84     
  Misses      19282    19282              
- Partials      774      782       +8     

Flag	Coverage Δ
provider-base	28.38% <91.20%> (+0.36%)	⬆️
provider-certification-client	57.14% <ø> (ø)
provider-certification-server	57.14% <ø> (ø)

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[rickwu666666]

I've tried with my project which is using mali GPU, and the change works perfectly.
https://certification.canonical.com/hardware/202507-36924/submission/451589/test-results/pass/