Added Decsions and actions based on emeny health and player health

Enemy is taking damage but player is still not....for some reason

entering a door area triggers a text to let the player know how to
enter/exit

Please keep Left is true and Right is false
Started to add player health

if the player cant move when you start up - click on the player object,
set the 'size' variable to 1 under the player controller script in the
inspector. drag and drop a weapon object onto the slot and VOILAH!

restrics movement past shops

Scripts to be used by shops and modify the player stats (not implemented
yet)
Can create new weapons by clicking on the menu Assets > create > new
weapon

Main scene with walking animation, doors to other scenes but bug when
exited. (appear at random door)