added truncate file option to context menu

Author: jsuppe

src/LogExpert/Controls/LogTabWindow/LogTabWindow.designer.cs

@@ -813,6 +813,12 @@ private void OnFindInExplorerToolStripMenuItemClick(object sender, EventArgs e)
             explorer.Start();
         }
 
+        private void truncateFileToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            LogWindow logWindow = dockPanel.ActiveContent as LogWindow;
+            File.WriteAllText(logWindow.Title, "");
+        }
+
         private void OnExportBookmarksToolStripMenuItemClick(object sender, EventArgs e)
         {
             CurrentLogWindow?.ExportBookmarkList();
@@ -1017,4 +1023,4 @@ private void OnTabRenameToolStripMenuItemClick(object sender, EventArgs e)
 
         #endregion
     }
-}
+}