Got melee weapons working and drawing a black triangle strip as the swing graphic.  Also added toggle with 'e' key to change between a right handed melee weapon and left handed projectile weapon.
Fixed texture coordinates for swing sprite.  Created unlit shader and conditional for rendering using either it or a lit shader for sprites.
Fixed the textbox error that was preventing it from building.  Created teh 'TopDown' camera mode.
Some tweaks for demo purposes and screenshots.