assets -> create -> new potion/armour

This reverts commit fc0f1ccb.

will fix on play mode (should work for any sized screen) looks a little
silly during scene view though.
- few main screen tweaks (button highlights)

Fixed the different screen size issue (during play mode, looks silly
during scene view though)

Rebuilt the tree with more decisions, funky stuff was goin on

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

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)