Add V1 baseline migration in order to avoid SUPER privilege need from 0.x schema version

[juherr]

Checklist

• I checked other issues already and found no answer
• I checked the documentation and found no answer
• I am running the latest version and the feature i am requesting is not implemented there

Describe the problem you are trying to solve

When you build Steve, you need to have a database with SUPER privilege otherwise you are not able to run migrations (see #495 ad other related issues).
This need was removed in a later migration and V1.x doesn't need it anymore.

Describe the solution you'd like

Flyway has baseline migration which skips migrations files when not needed.
https://flywaydb.org/documentation/tutorials/baselineMigrations
Having a V1.0 baseline migration will skip the migrations which need more privileges.

Describe alternative solutions or features you've considered

Do it by hand:

1. Run migrations on a database with enough privilege
2. Export schema
3. Import schema into the target database without super privilege

Additional context

When working, it will be possible to remove the FAQ entry.
https://github.com/steve-community/steve/wiki/FAQ#database-migration-fails-on-mariadb-due-to-missing-super-privilege