Implemented the following features requested by @LordYarkan

- /dynamiclights toggle (dynamiclights.toggle) (Player default)

Toggle will allow individual clients to disable rendering. Other players will see your held lights, but you will not see yours or theirs. Players must move at least once for the hidden light to disappear due to anti-flickering logic.

- /dynamiclights reload (dynamiclights.reload) (OP default)

Reload will only reload "lights.yml" at this time and changes to "config.yml" will require a restart. This may be changed in the future. This will currently allow you to add, remove, or change light levels for held items dynamically.