Add folder and branch to GitHub

[Dev-Khant]

Description

Add support for extraction of data from specific Branch or File.

Fixes #1243

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Refactor (does not change functionality, e.g. code style improvements, linting)
• [ ] Documentation update

How Has This Been Tested?

Yes

Please delete options that are not relevant.

• [x] Unit Test
• [ ] Test Script (please provide)

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [x] I have checked my code and corrected any misspellings

Maintainer Checklist

• [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
• [ ] Made sure Checks passed

[Dev-Khant]

Error not generated from my changes. Let me know how can I fix it.

[deshraj]

Can you please check why the tests are failing?

[Dev-Khant]

@deshraj Error is caused because of tests/evaluation/test_context_relevancy_metric.py. Locally all the tests are passing.

[deshraj]

Oh interesting. Will merge this PR and debug it separately on my end. Thanks for this PR!