added sounds, particles, and potion effects via permission

demo -


You can find a full list of sounds here - https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/Sound.html
(there were too many sounds to reasonably add all of them as permissions on startup, so you'll have to copy/paste)
volume and pitch are configurable by percentage (default is 100)

particles here - https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Particle.html
number of particles is configurable

potion effects here - https://hub.spigotmc.org/javadocs/bukkit/org/bukkit/potion/PotionEffectType.html
duration, level, ambient, particles, icon (in that order)