Load base64 encoded image in ImageReader (#3595)

Same as this PR react-native-maps/react-native-maps#2392 in AirMapMarker

Author: DavidGonzalezGutierrez

lib/android/src/main/java/com/airbnb/android/react/maps/ImageReader.java

@@ -89,7 +89,7 @@ public void setImage(String uri) {
       imp.setIconBitmapDescriptor(null);
       imp.update();
     } else if (uri.startsWith("http://") || uri.startsWith("https://") ||
-        uri.startsWith("file://") || uri.startsWith("asset://")) {
+        uri.startsWith("file://") || uri.startsWith("asset://") || uri.startsWith("data:")) {
       ImageRequest imageRequest = ImageRequestBuilder
           .newBuilderWithSource(Uri.parse(uri))
           .build();