[FEATURE REQUEST] States for running sql scripts

[OrangeDog]

Is your feature request related to a problem? Please describe.
Needing to manage an SQL database beyond what is currently provided by db/schema/user/group states. In particular the creation and updating of tables/views/sequences/triggers/constraints/rows. Or running SQL scripts provided by applications that is needed to initialise them.

Describe the solution you'd like
Something like an sql.applied state, ideally backend-independent but I don't think that's feasible given how the current db connections are designed (i.e. they run the backend's CLI tool instead of using a PEP 245 API).

Describe alternatives you've considered
A suite of table.present/absent, column.present/absent, view.present/absent, etc. states for every backend could be implemented. It would be more Salty and easier to be stateful, but would also be considerably more work.

Implementing a custom module: https://gist.github.com/OrangeDog/49871e06b017318b7498b810e2ad7caa

Additional context
This is a duplicate of #4697

I don't think this should be hard to add, we will investegate it for 0.16.0

Please Note
If this feature request would be considered a substantial change or addition, this should go through a SEP process here https://github.com/saltstack/salt-enhancement-proposals, instead of a feature request.