update runtime code

新增方法YooAssets.SetCacheSystemDisableCacheOnWebGL()

Assets/YooAsset/Runtime/CacheSystem/CacheSystem.cs

@@ -10,6 +10,11 @@ namespace YooAsset
 	{
 		private readonly static Dictionary<string, PackageCache> _cachedDic = new Dictionary<string, PackageCache>(1000);
 
+		/// <summary>
+		/// 禁用Unity缓存系统在WebGL平台
+		/// </summary>
+		public static bool DisableUnityCacheOnWebGL = false;
+
 		/// <summary>
 		/// 初始化时的验证级别
 		/// </summary>