Make updating of well log plots more robust

1. Don't update tracks in RimWellLogPlot::createViewWidget.
 * We haven't set up the MDI windows properly yet.
 * Instead implement updateVIewWidgetAfterCreation override and do update tracks there.
2.  Perform calculateAvailableDepthRange in applyZoomAllDepths
3. Do replot of track widgets twice when changing visible range. Need to investigate this one further.

ApplicationCode/ProjectDataModel/RimWellLogPlot.h

@@ -126,7 +126,7 @@ protected:
     virtual void                                    onLoadDataAndUpdate() override;
 
     virtual QImage                                  snapshotWindowContent() override;
-
+    virtual void                                    updateViewWidgetAfterCreation() override;
 
 private:
     void                                            applyZoomAllDepths();