Update v 0.3.7

Changelog v0.3.7

- Added sound effect for collecting Daisies

- Added background with parallax

- Added some post processing effects

- Added speedrun mode:

•      It adds a timer to the game
•      Timer starts once the player have moved
•      You cant use Debug commands in this mode
•      Timer stops when you collect all the Daisies
•      You can activate it in the main menu