Add query and permission operators to support array-type columns

It would be very useful to have operators that worked on array columns (e.g. `text[]`).

Sometimes you just really want to use an array column for something. And the currently-supported operators like `_in` are not especially useful for working with them.

Looking at the [Postgres docs](https://www.postgresql.org/docs/13/functions-array.html), it seems like the following would be useful:

* `@>` - `_contains`
* `<@` - `_contained_in`
* `&&` - `_overlap`