Feature - Strict Query Validation

[kodumbeats]

This PR introduces a new Queries validator to validate an array of Query objects by:

• Individually validating each Query object
• Strict validation: validate the query params can all be found in one index
• Checks if index is queued for creation during strict validation

Test plan:
Unit tests included

TODO:

• Handle index order (ASC, DESC, etc)

[eldadfux]

@kodumbeats I might also add a new collection attributed called "indexesInQueue" to hold pending indexes that are still being created, this will allow us to give a better error messages in this validator.

[kodumbeats]

@eldadfux I'm not 💯 on what is best to pass to the Queries validator constructor. I landed on this approach in acefb92 because passing in Utopia\Database\Database made the code really messy, and I lost the story.

Maybe you have some suggestions on how to best model the new collections in the Queries unit tests:
https://github.com/utopia-php/database/pull/7/files#diff-0817ee1ddaadb2e308dc292229f9d4c4fb1de9cdc2d00a30ac9c9ab528ec1223R16

[eldadfux]

Looks very good, left some minor comments. When ready I can merge it and start playing around with it :)