Improved GameFileCache memory usage

CodeWalker.Core/GameFiles/FileTypes/YmapFile.cs

@@ -226,6 +226,10 @@ namespace CodeWalker.GameFiles
             //{ }
 
             #endregion
+
+#if !DEBUG
+            Meta = null;
+#endif
         }
 
 

CodeWalker.Core/GameFiles/GameFileCache.cs

@@ -2257,6 +2257,13 @@ namespace CodeWalker.GameFiles
         }
 
 
+        public void BeginFrame()
+        {
+            lock (requestSyncRoot)
+            {
+                mainCache.BeginFrame();
+            }
+        }
 
 
         public bool ContentThreadProc()