QmlProfiler: Relay mouse move events to the timeline's parent window

Like this the DockWidget gets notified when the mouse has entered it
and can show the title bar if necessary.

Change-Id: I164b125f6a4a2099f1f95cf6f0a7699605d12051
Task-number: QTCREATORBUG-12899
Reviewed-by: hjk <hjk121@nokiamail.com>

src/plugins/qmlprofiler/qmlprofilertraceview.cpp

@@ -424,6 +424,7 @@ bool QmlProfilerQuickView::event(QEvent *ev)
             relayed = true;
         }
         break;
+    case QEvent::MouseMove:
     case QEvent::MouseButtonPress:
     case QEvent::MouseButtonRelease: {
         QMouseEvent *orig = static_cast<QMouseEvent *>(ev);