feat: add no-light/facemovementonly challenge and back camera support

[thisisabhash]

Check points: (check or cross out if not relevant)

• Added new tests to cover change, if needed
• Build succeeds with all target using Swift Package Manager
• All unit tests pass
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov]

Codecov Report

Attention: Patch coverage is 35.74766% with 275 lines in your changes missing coverage. Please review.

Project coverage is 28.86%. Comparing base (3ab41b4) to head (a00e8fa).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
...ess/Views/Liveness/FaceLivenessDetectionView.swift	12.50%	105 Missing ⚠️
...iews/Liveness/FaceLivenessDetectionViewModel.swift	23.25%	66 Missing ⚠️
...s/Views/Instruction/InstructionContainerView.swift	0.00%	21 Missing ⚠️
...etectionViewModel+FaceDetectionResultHandler.swift	41.66%	21 Missing ⚠️
...ction/BlazeFace/FaceDetectorShortRange+Model.swift	0.00%	16 Missing ⚠️
...ceLiveness/Views/LoadingPage/LoadingPageView.swift	0.00%	12 Missing ⚠️
...FaceLiveness/Utilities/FinalClientEvent+Init.swift	0.00%	8 Missing ⚠️
...Liveness/Views/GetReadyPage/GetReadyPageView.swift	0.00%	8 Missing ⚠️
...ss/Views/GetReadyPage/CameraPreviewViewModel.swift	0.00%	4 Missing ⚠️
...veness/Views/Liveness/LivenessViewController.swift	0.00%	4 Missing ⚠️
... and 5 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #131      +/-   ##
==========================================
- Coverage   29.05%   28.86%   -0.19%     
==========================================
  Files          57       58       +1     
  Lines        2802     3104     +302     
==========================================
+ Hits          814      896      +82     
- Misses       1988     2208     +220     

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