Dispose file after creation to allow process release (avoid process being used- issue when renaming)

Author: joaoribe

src/SQLScriptsExplorer.Addin/Controls/FileExplorerTreeView.xaml.cs

@@ -334,7 +334,7 @@ private void mnuNewFile_Click(object sender, RoutedEventArgs e)
 
             if (!File.Exists(newFilePath))
             {
-                File.Create(newFilePath);
+                using (File.Create(newFilePath)) { }
 
                 var newTreeNode = new TreeNode(newFileName, newFilePath, TreeNodeType.File);
                 newTreeNode.Parent = currentTreeNode;