Reset all the achievements for the local user.

		function Start () {
			GameCenterPlatform.ResetAllAchievements( function(resetResult) {
				Debug.Log( (resetResult) ? "Reset done." : "Reset failed." );
			});
		}

		using UnityEngine;
		using UnityEngine.SocialPlatforms.GameCenter;
		
		public class Reset : MonoBehaviour {
			void Start () {
				GameCenterPlatform.ResetAllAchievements( (resetResult) => {
					Debug.Log( (resetResult) ? "Reset done." : "Reset failed." );
				});
			}
		}