Create arq-0.83-lin.cpp

An overhauled version of The ASCII Roguelike Quester using classes and datastructures to allow the expansion of the game engine and to accomodate a specific style of combat.

-- New Features -- 
*Overhauled item/weapon system (Weapons are now a subtype of item, UI fixes, etc)
*Items and weapons are no longer part of the map
*Randomised item/weapon generation
*New weapons/items can now be added by adding to the enumerated type that indexes it, then adding an entry for it to the library.