Project Manager Projects Screen Dynamically Shows Projects Loaded from O3DE (#873)

* Projects Home Screen Dynamically displays Projects from O3DE and can open Project settings editor

* Seperated out CreateProjectCtrl and UpdateProjectCtrl

* Moved source level statics back into class headers

* Updated background image location

Code/Tools/ProjectManager/Source/GemCatalog/GemCatalogScreen.cpp

@@ -170,9 +170,4 @@ namespace O3DE::ProjectManager
     {
         return ProjectManagerScreen::GemCatalog;
     }
-
-    QString GemCatalogScreen::GetNextButtonText()
-    {
-        return "Create Project";
-    }
 } // namespace O3DE::ProjectManager