Remove Sandbox.Game from tool compiles
Added Option.Checkable, Option.Checked
Added ConsoleSystem to tools
MenuAttribute supports boolean property with check state toggle
Fix crazy menu check positioning
Disable combobox open animation
Add EntityIO menu option
Move DisplayInfo to Sandbox.System
ConVar data bind
EnumBox supports [Display] enums
Rename Widget.Layout() to Widget.DoLayout()
Add render mode enumbox