Firework mod for VoxeLibre

by Herowl and teknomunk, based on the old version by NO11 and j45

Sound credits:

* mcl_firework_rocket.ogg (tnt_ignite.ogg): Own derivate work of sound by Ned Bouhalassa (CC0) created in 2005, source: <https://freesound.org/people/Ned Bouhalassa/sounds/8320/>
