RTL language support

[moallemi]

Platform: Android
Mapbox SDK version: 4.0.1

Steps to trigger behavior

1. Open Sample App and set center of mapView to 35.6961, 51.4231 and zoom level 12

mapboxMap.setCameraPosition(new CameraPosition.Builder()
      .target(new LatLng(35.6961, 51.4231))
      .zoom(12)
      .bearing(0)
      .tilt(0)
      .build());

output is:

As you see in screenshot the titles or rendered wrong in Persian Language. for example I marked 3 labels:
بهارستان is wrongly rendered as ن ا ت س ر ا ه ب
بازار is wrongly rendered as ر ا ز ا ب
سنگلج is wrongly rendered as ج ل گ ن س

Would you please add RTl Language support for mapbox-gl-native?

[tobrun]

Quoting @mikemorris from #1259 (comment):

Known issue, we haven't added support for text shaping (connected characters) or right-to-left scripts yet.

You can follow up on this issue in mapbox/DEPRECATED-mapbox-gl#4