Make Tabview a friend of Base Page to allow it to notify pages that they are hidden or showing.
Implement the notification in Tabview to allow pages to know they are showing.
This will allow for easy creation of "pages" that can be layed out internally and passed to different screens and cleaned up when screens are cleaned up by the screen manager
add set width and height to base elements that allow for easy resizing
Create a settings page and make it red.
Test adding 2 tabs with the Page
this currently does not do anything fantastic on simulator but it sets a strong foundation for managing multiple pages
