Being able to configure Bloom

[Crackle]

I think it might be a great idea to be able to configure how bloom works in the game. With being able to change the preset (BloomSettings) or the intensity, in order to better fit the need of the current project.

Maybe something like :
game_config_mut().bloom_intensity = 0.7;
game_config_mut().bloom_preset = BloomSettings::OLD_SCHOOL

If you see what I mean