Add alembic migrations to the project
Bitcart backend API uses gino orm(kind of orm), which is executing sqlalchemy core queries via async database driver.
But there are no migrations yet, so user data might be broken if we won't add migrations.
All is needed is to setup alembic with that project, and add applying migrations code somewhere in [`docker-entrypoint.sh`](https://github.com/MrNaif2018/bitcart-docker/blob/master/compose/scripts/docker-entrypoint.sh).
But as bitcart is using async orm, we might need to find alternate solution for that if it is possible.
Also any ideas on using a better orm are appreciated.
In future we might switch to edgedb at all.