Provision transporters with hubs

VesselDefinitions.gd

@@ -17,6 +17,14 @@ static func all() -> Array:
 		result.append(DEFINITIONS[definition_id])
 	return result
 
+
+static func fleet() -> Array:
+	var result: Array = []
+	for definition in all():
+		if definition.fleet_eligible:
+			result.append(definition)
+	return result
+
 static func with_capability(capability: String) -> Resource:
 	for definition in all():
 		if definition.has_capability(capability):