* [visual] add intellisense popups for visual
* Add visual registrations into type converter
* combine VisualMarker and VisualRendererMarker
* remove visual from class name for intellisense
* set Match Parent to internal
* Remove register code and just scan assemblies
* [Visual] Add Visual Attribute and some additional attribute checks
* remove registrar changes
* renamed to specific VisualTypes
* - move check up to LINQ statement
* Make sure the other platforms can create visuals
* fix renderer names
* move stepper renderer
* rename converter