simple mapbox static image component

[kfarr]

why? the existing mapbox component:

• does not accurately size the map (1:1)
• creates a plane that stays white until the image loads (instead of using asset loader to block scene display, or hiding plane until texture is loaded)
• produces inconsistent visual output depending on device

Idea instead:

• for a given lat / lon use static mapbox api to generate an image https://docs.mapbox.com/playground/static/
• https://api.mapbox.com/styles/v1/mapbox/satellite-streets-v11/static/-122.4174,37.7652,17.44,0/1024x1024?access_token=[omitted]
• then size the plane automatically based on zoom, latitude and dimensions https://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Resolution_and_Scale
• wait to display the plane until the map is loaded, or display something else in place