Adding creation of data into data handler, marking the way for szdb handling

SzCore/Defaults/DefaultLocalFileManager.cs

@@ -43,4 +43,18 @@ public class DefaultLocalFileManager : ISzFileManager
             return null; 
         }
     }
+
+    public bool DeleteFile(string path)
+    {
+        try
+        {
+            File.Delete(path);
+            return true;
+        }
+        catch (Exception e)
+        {
+            SZ.Logger.LogError("LocalFileManager: Could not delete file. " + e.Message);
+            return false;
+        }
+    }
 }