Items menu, mouse sensibility, new characters and improvements

Prototype 0.2.60

• Included mouse sensitivity setting in options menu

• Included inventory screen showing a preview of the current planned items for the game. The icons are placeholders and will change.

• Improved movement animations

• Included new characters in desert world
• Included footsteps on numbers world to help players track progress when walking

• Fixed Utsuki velocity in her bedroom
• Improved UI navigation with controller