[ECO] Support for postgres's `pg_vector`

[blythed]

Necessary tasks:

• [ ] Create a subclass of backends.ibis.databackend.IbisDataBackend
• [ ] Implement configuring the index in this class (use Mongo as an example)
• [ ] Implement logic inside .backends.ibis.query.Like, using .backends.mongodb.query.Like as inspiration
• [ ] ...

[Yaro1]

please assign to me

[makkarss929]

@blythed You can assign this to me, Very Excited about this