Add support for repeat prop

RCTVideo.m

@@ -23,7 +23,6 @@
   [_player setContentURL:videoURL];
   [_player setControlStyle:MPMovieControlStyleNone];
   [_player setScalingMode:MPMovieScalingModeNone];
-  [_player setRepeatMode:MPMovieRepeatModeOne];
   [_player prepareToPlay];
   [_player play];
 }
@@ -33,6 +32,15 @@
   [_player setScalingMode:mode];
 }
 
+- (void)setRepeat:(BOOL)repeat
+{
+  if (repeat) {
+    [_player setRepeatMode:MPMovieRepeatModeOne];
+  } else {
+    [_player setRepeatMode:MPMovieRepeatModeNone];
+  }
+}
+
 - (NSArray *)reactSubviews
 {
   NSArray *subviews = @[_player.view];