MemoryWidget: Add "Add to watch" action

Source/Core/DolphinQt/Debugger/MemoryViewWidget.cpp

@@ -403,6 +403,11 @@ void MemoryViewWidget::OnContextMenu()
 
   menu->addSeparator();
 
+  menu->addAction(tr("Add to watch"), this, [this] {
+    const u32 address = GetContextAddress();
+    const QString name = QStringLiteral("mem_%1").arg(address, 8, 16, QLatin1Char('0'));
+    emit RequestWatch(name, address);
+  });
   menu->addAction(tr("Toggle Breakpoint"), this, &MemoryViewWidget::ToggleBreakpoint);
 
   menu->exec(QCursor::pos());