refs https://github.com/TryGhost/Ghost/issues/12565
- Dropping tables happens sporadicaly, usually during major version releases. It made sense to create a utility based on previous migrations of this type (e.g.: 3.0/03-drop-client-auth-tables.js migration) to avoid code duplication in the future
- these helpers remove a lot of the duplicated code that we had when doing up/down column migrations, and provides a much shorter way of doing this in the future
no-issue
These utils are the first steps toward getting the models out of our
migrations! The utils here interact directly with the database and where
possible don't reinvent the wheel, by using smaller building blocks to
build more comples ones.
