Another day gone another milestone reached

Movement continues to come along nicely.   I've ripped out most of the game_state logic from the tutorial and just made Player Turn a special AI that won't let the turn continue to the next entity until there's valid keyboard input (More stuff to come!)

I'm absolutely certain I'll regret this decision when I need different states to handle inventory and leveling.   However, it was neat to streamline that part for now.

Coming next:

• Travel between floors
• Items to pick up
• More enemies to fight
• Maybe some goal!