ExtraFireworks 1.2.0 - Add launch command and motion/direction support
Add /ef launch <effect> [<world>,]<x>,<y>,<z> <power> [<config>]. The json config can contain a motion: "x,y,z" tag to specify which direction the firework should fly in and how fast.
Add support for direction/motions for fountain effects.
Include a flash on explosion like Vanilla for fireworks that only have custom effects