Make github_data a command with several subcommands

[difince]

Is your feature request related to a problem? Please describe.

No.

Describe the solution you'd like

Combine the logic associated with GitHub Data into a single executable.
Create a single python command which provides several services/sub-commands:

1. Extract GitHubData
2. Reformat GitHubData

Each of the subcommands will have its own set of mandatory/optional parameters.

Command signature:

python ./ml-conversational-analytic-tool/github_data.py extract <organization> --repo <repo>
python ./ml-conversational-analytic-tool/github_data.py reformat <raw_data_file> --name <output_file_name>

github_data.py will be a wrapper that will call the specific logic for data extraction or format.
For future enhancements additional subcommand could be added.

Describe alternatives you've considered

No response

Additional context

No response