Derive Placemark.scope from place_type

[1ec5]

Placemark.scope is computed by parsing the feature identifier, but this means a placemark can have only one scope. In fact, a Geocoding API result can have multiple scopes, but the remaining scopes are encoded in the place_type property.

MapboxGeocoder.swift/MapboxGeocoder/MBPlacemark.swift

Lines 184 to 188 in ffb6c13

	@objc open var scope: PlacemarkScope {
	let components = identifier.components(separatedBy: ".")
	assert(components.count > 0)
	return PlacemarkScope(descriptions: [components.prefix(2).joined(separator: ".")]) ?? PlacemarkScope(descriptions: [components.first!]) ?? []
	}

/ref mapbox/mapbox-java#512
/cc @frederoni @samfader