Add the supabase setup for setting up role based access.

[CharanMN7]

• Figure out how and add the SQL Scripts to the codebase.
• Research strategies for implementing role-based access.
• Build a general purpose role-based access system that can be easily removed.

[CharanMN7]

This starterkit now uses Supabase CLI and the PostgreSQL scripts go inside the supabase folder that handles the CLI and the local Supabase database.