Migrate chat_with_video Project from Aana SDK

[movchan74]

Summary:
Migrated chat_with_video project from Aana SDK.

Key Changes:

1. Code Migration: Migrated all the functionality of the project to a separate repo.
2. Database: Moved Extended Video Entity and all related entities to the project as well as their repositories. Added alembic setup for the project and migrations.
3. Tests: Moved project tests to the repo but reused fixtures from the SDK.

Notes:

• The database setup will serve as an example for other Aana Apps that need a database. My suggestion would be to add it to the app template.
• Right now the app uses the remove_projects branch of the Aana SDK. We might want to change it later once remove_projects is merged and the new SDK is released.

[HRashidi]

We need to add a github action with gpu for tests.