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 https://github.com/feathersjs/feathers/issues/2759 Closes https://github.com/feathersjs/feathers/issues/2933

[netlify[bot]]

✅ Deploy Preview for feathers-dove ready!

Name	Link
🔨 Latest commit	0202e911c2b665710ea80a521e443f1242f91450
🔍 Latest deploy log	https://app.netlify.com/sites/feathers-dove/deploys/63a0f31a04714f000869b993
😎 Deploy Preview	https://deploy-preview-2941--feathers-dove.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site settings.

[marshallswain]

:shipit: