## Core
* Added Entity.PositionOffset which is now taken into consideration when rendering an entity.
** By setting this property to the position of a console (when the console and entity have the same cellsize) will cause the entity to look as if it's hosted by the console.
* Cell now has a SpriteEffect property which allows you to mirror and flip the cell to create more characters.

## Controls
* Fixed a bug in rendering a controls console with the ViewArea changed to start at something other than 0,0
* Fixed some drawing bugs in ListBox