ui: implemented gui abstraction and dummy view

- added abstract class tree for gui elements.
- implemented concrete gui classes that wrap the qt specific content.
- implemented first DummyView which plays nice with the ViewManager.

review id = 12

src/lib/component/Component.cpp

@@ -1,8 +1,8 @@
 #include "component/Component.h"
 
-Component::Component(const std::shared_ptr<Controller>& controller, const std::shared_ptr<View>& view)
-: m_controller(controller)
-, m_view(view)
+Component::Component(std::shared_ptr<View> view, std::shared_ptr<Controller> controller)
+	: m_controller(controller)
+	, m_view(view)
 {
 }