Made "Background particle" and it's generator multi-purpose and added new features
Pickups make particles when, picked up
Added beanstalk and leaves graphics
Added droplet particles
Added "preset" particle, for possible later use
Merge branch 'master' of https://github.com/Merowm/Bad-Dreams
Changed the layer of particles to be in front of stuff
Made the scene hierarchy more clear
Added more pickups
Cleaning up