add attribution prefab, bunch of scripts for opening website and settings telemetry flag

change mapbox config to include telemetry option
change mapService to relay mapboxContext settings, particularly telemetry flag at the moment

Author: brnkhy

Editor/MapboxConfigurationWindow.cs

@@ -79,13 +79,12 @@ static void Init()
 		{
 			Runnable.EnableRunnableInEditor();
 
-			//verify that the config file exists
-			_configurationFilePath = Path.Combine(Constants.Path.MAPBOX_RESOURCES_ABSOLUTE, Constants.Path.CONFIG_FILE);
 			if (!Directory.Exists(Constants.Path.MAPBOX_RESOURCES_ABSOLUTE))
 			{
 				Directory.CreateDirectory(Constants.Path.MAPBOX_RESOURCES_ABSOLUTE);
 			}
 
+			_configurationFilePath = Constants.Path.MAPBOX_CONFIG_ABSOLUTE;
 			if (!File.Exists(_configurationFilePath))
 			{
 				WriteConfigFile(new MapboxConfiguration(), _configurationFilePath);