QmlProfiler: Make the progress bar somewhat nicer.

Allow adding a weight to certain tasks so that the movement of the bar
gets smoother and update the progress from more places.

Change-Id: Ifb8331dc77116cc0464b3970cd6344fbbeacec41
Reviewed-by: Kai Koehne <kai.koehne@digia.com>

src/plugins/qmlprofiler/qmlprofilersimplemodel.cpp

@@ -42,6 +42,7 @@ namespace QmlProfiler {
 QmlProfilerSimpleModel::QmlProfilerSimpleModel(QmlProfilerModelManager *parent)
     : QmlProfilerBaseModel(parent)
 {
+    m_modelManager->setProxyCountWeight(m_modelId, 2);
 }
 
 QmlProfilerSimpleModel::~QmlProfilerSimpleModel()