refs #335, changed info areas

* remove unused methods
* changed ui, preferred size and such
* changed ctor for CEnableForDockWidgetInfoArea and made setParentDockWidgetInfoArea virtual
* adjusted derived classes ctor
* added enum and area methods for cockpitinfoarea

src/blackgui/components/cockpitcomcomponent.cpp

@@ -19,7 +19,7 @@ namespace BlackGui
     {
         CCockpitComComponent::CCockpitComComponent(QWidget *parent) :
             QFrame(parent),
-            CEnableForDockWidgetInfoArea(this),
+            CEnableForDockWidgetInfoArea(),
             ui(new Ui::CCockpitMainComponent)
         {
             ui->setupUi(this);