Removed unneeded debug files.
Added simple pausing.
Added shader for pause
Updated monochrome shader to use an alpha-value parameter
Shader no longer uses pre-multiplied alpha
Basic inventory display now working.
Added item highlighting and gamepad support for current iteration of inventory
Now includes rudimentary tooltips and item stacking numbers
Added scrollable menu pane
Improved scrollable selection pane class and added simple context menu for the inventory
Added scrollbar to scrollable selection panes.
Fixed cancelling out of inventory menu
Added the ability to apply items to one another.
Basic equip menu added.
Equipment system working on a rudimentary level
Weapons now equippable
Equip menu functionality improved
Controller version of equip screen mostly working.  Added some scrolls
Fixed offhand equip bug
Removed test code for game menu