feat(schema): Allow to add additional operators to the query syntax

[daffl]

This pull request allows to extend the querySyntax schemas with custom operators like $ilike. In TypeBox this looks like this:

const messageQuerySchema = Type.Intersect(
  [
    // This will additioanlly allow querying for `{ name: { $ilike: 'Dav%' } }`
    querySyntax(messageQueryProperties, {
      name: {
        $ilike: Type.String()
      }
    }),
    // Add additional query properties here
    Type.Object({})
  ],
  { additionalProperties: false }
)

Closes #2759
Closes #2933

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[marshallswain]

Nice and clean

[marshallswain]