CI: testing frame order and fps

[Kontra2B]

Functional V4L2 camera FPS test verifies:

• frame order for repeated and dropped frames (no frame number repetition and 1 drop allowed)
• each frame FPS calculated from time delta falls within KPI
• requeseted frame count arrive

[Copilot]

Pull request overview

This PR adds functional V4L2 camera FPS testing to verify frame order, frame rate accuracy, and frame count delivery. The test validates that frames arrive in sequence (with at most 1 drop allowed), each frame's FPS falls within a 5% KPI threshold, and the requested frame count is received.

Key changes:

• New test_fps.py implementing comprehensive FPS verification with frame order checking
• Enhanced error handling and Python 3 compatibility fixes in existing tests
• Jenkins pipeline configuration for automated CI testing

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
test/test_fps.py	New comprehensive FPS test verifying frame order, timing, and count
test/test_fw_version.py	Added .decode() calls for Python 3 compatibility and improved error messages
test/test_metadata/build.sh	Added debug flags and removed test execution from build script
test/run_ci.py	Improved exception logging and added missing sys.exit call
test/pytest.ini	Added pytest configuration with d457 marker
test/groovy/LRS_libci_pipeline.groovy	New Jenkins pipeline for automated testing

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[Copilot]

Extra space before comma. Should be < 3, instead of < 3 ,

Suggested change

	assert (frame - last) < 3 , f"Frames dropped between: {last} and {frame}"
	assert (frame - last) < 3, f"Frames dropped between: {last} and {frame}"

[Copilot]

Inconsistent spacing in format() call - there's an extra space after the opening parenthesis and before the closing one. Should be .format(e) for consistency with line 36 in test_fw_version.py

Suggested change

	print("Exception occurred: {}".format( e ))
	print("Exception occurred: {}".format(e))

[Copilot]

Inconsistent spacing in sys.exit() call - there are extra spaces before and after the parentheses. Should be sys.exit(1) to match Python conventions and the existing sys.exit(0) pattern in the usage() function

Suggested change

	sys.exit ( 1 )
	sys.exit(1)

[Nir-Az]

I suggest renaming the file as libci is not related