Map performance improvement and a new ending for the credits! — Joshua's Legs Steam update #317107

This update focus on improving the map performance. This was done by creating a new renderer for the map and hiding some objects that were not supposed to be rendered in the map such as particles, ropes, lights, etc. The credits were previously found in Joshua's room but it is now part of a new twist that adds some content and easter eggs in the game. Cheers!