Added GameNavigator project

- WIP on the GameNavigator
- Added GameNavigatorGateway in WindowsBaseFx (only on WINDOWS)
Added basic Navigator UI

- Play/Pause button
- OneFrame (not perfect yet)
- Exit
Navigator UI improvement WIP

- Added more GameTiming data in the StatusBar
- TreeView SelectedItem hack
- Navigator window title update
- Added INavigatorMetadataProvider to have better info in the Navigator
F12 to show Navigator when previously hidden
Added Icons for Navigator nodes
Fixed Navigator ToolBar button state

- Fixed CurrentSelection for root nodes
- Implemented Refresh & active only when selecting a node
- Play and pause button
- One Frame active only when paused
Added GameWindow and Navigator position persist
Added ObjectInspector

- Added Extended WPFToolkit to use the PropertyGrid
- Moved Navigator to own namespace
Implemented navigator interface on more object

- INavigatorMetadataProvider and IComposite