Add limited support for ultra queries

[dschep]

@mhpob is Ultra-pilled 😂 so lets add partial ultra query support with a layer class/func that can easily be re-used that supports the following:

• YAML-frontmatter keys:
  • title
  • description
  • style
    • Ignores extends
    • Ignores beforeLayerId
  • type - must be overpass
  • popupTemplate?
• a query!