Fix Little Memory Leaks

Util/FrameReader.cs

@@ -104,6 +104,12 @@ namespace ADOFAIRenderer.Util
 
         private void RecycleState(ReadbackRequestState state)
         {
+            if (!_isInitialized)
+            {
+                state.Dispose();
+                return;
+            }
+            
             state.Recycle();
             lock (_poolLock)
             {