Implements enum[]

[allevo]

With this PR, I want to introduce the enum[] as the follower of #458

So,

const db = await create({
  schema: {
   colors: 'enum[]',
  },
})
await insertMultiple(db, [
  {colors: ['green', 'red'] },
  {colors: ['green'] },
  {colors: ['blue', 'white'] },
])

const resultContains = await search(db, {
  term: '',
  where: {
    colors: { contains: 'green' },
  }
}) // Expected 2 results: 1° and 2°
const resultIntersects = await search(db, {
  term: '',
  where: {
    colors: { intersects: ['red', 'blue'] },
  }
}) // Expected 2 results: 1° and 3°

This PR introduces contains, and intersects operators because they are more appropriate for arrays.

• implementation
• documentation
• tests
• facets for enum and enum[]
• feedback

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Name	Status	Preview	Comments	Updated (UTC)
orama-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 19, 2023 4:00pm

[micheleriva]

Looks mostly good to me. I just left a couple of small comments. Since we're operating on arrays, I would use a unique keyword contains, where the value is either polymorphic (string or array of strings), or monomorphic (contains must include an array of 1 element).

[allevo]

Implement just containsAll operator

[micheleriva]

LGTM. In the future we might want to add another PR to implement a function for intersection