Added new commands and updated others
Implemented message clear commands
Updated permission nodes for message add commands
Updated command names in onEnable
Added missing command registrations
Added getter method for the FormatProvider
Refractored the FormatProvider
Ditched display names completely
Don't use the plugins configuration directly; Use the FormatProvider
Renamed the FormatProvider to FormatManager
Renamed custom message executors for clarity
Rewrote the getFormat method