Flask API: Instantiate starklings MySQL Database with a db.py file

[ExoMonk]

- Using feat/backend branch, create your own

Onto the starklings/starklings-backend/db.py file, Instantiate the full Starklings DB using SQL

1 - Created Tables :

• starklings_user ( #user_id: int AUTO INCREMENT, wallet_address: str, signature: str, username: str, github: str)
• validated_exercise ( #id, ForeignKey(user_id), path_name, exercise_name)
• path (#path_id, path_name)
• exercise (#exercise_id, exercise_name)

2 - Inserting data in path & exercise tables :

• Using Starklings repository, inserts path and exercise for each possible exercises

3 - Create dedicated models under starklings/starklings-backend/starklings-backend/models/***.py

Pull Request on feat/backend