implement lime.ui.Haptic.vibrate(...) for iOS

-Basic implementation, but works-

project/src/ui/Haptic.mm

@@ -0,0 +1,15 @@
+#include <ui/Haptic.h>
+
+#import <AudioToolbox/AudioServices.h>
+
+namespace lime {
+	
+	
+	void Haptic::Vibrate (int period, int duration) {
+		
+		AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
+		
+	}
+	
+	
+}