v0.12 changes

this is a simple quality of life update

Changes

• New Textures for Keys so they don't blend in with the floor
• Moved one of the red keys possible spawns
• New Exit Door and Keyhole Textures
• New Crosshair
• Sprint Speed slightly increased
• moved  

Bug Fixes

• Fixed Camera being able to look outside of the map
• Fixed Exit Door flying away instead of moving upwards after all keys are collected