[FEATURE] [DOCS] [CI] [BUILD] Pipeline to Add Mature GitHub Gists

[ZenithClown]

Issue tracker is created to track, and update documentation of already existing matured GitHub Gists. The following gists are identified and can be incorporated into the code documentation:

• Time Series Utility Functions ts_utils #15
• NLP Related Utility Functions nlp_utils #14
• Date-Time Utility Functions datetime_ #13