Add vector query support to the query builder

[freost]

Type

---

	Yes/No
Bugfix?	-
New feature?	Yes
Other?	-

Additional information

	Yes/No
Has backwards compatibility breaks?	No
Has unit and/or integration tests?	Yes

Description

---

This PR adds vector query support to the query builder for the following databases:

• MariaDB
• MySQL (HeatWave)
• Postgres (pgvector)

Inserting vectors

$query = $query
->table('foobar')
->insert([
    'embedding' => new Vector([1, 2, 3, 4, 5])
]);

Selecting vectors

$query = $query
->table('foobar')
->select([
    new Vector('embedding')->as('vector')
]);

Selecting vector distances (cosine or euclidean)

$query = $query
->table('foobar')
->select([
    new VectorDistance('embedding', [1, 2, 3, 4, 5])->as('distance')
]);

Filtering on vector distance (cosine or euclidean)

$query = $query
->table('foobar')
->whereVectorDistance('embedding', [1, 2, 3, 4, 5], maxDistance: 0.15)
->limit(10)
->all();

Sorting by vector distance (cosine or euclidean)

$query = $query
->table('foobar')
->orderByVectorDistance('embedding', [1, 2, 3, 4, 5])
->limit(10)
->all();

$query = $query
->table('foobar')
->ascendingVectorDistance('embedding', [1, 2, 3, 4, 5])
->limit(10)
->all();

$query = $query
->table('foobar')
->descendingVectorDistance('embedding', [1, 2, 3, 4, 5])
->limit(10)
->all();