Rebrand plugin to NightVisionPlusPlus v3.0.0

• New command: /nightvisionplusplus (aliases: /nv, /nvp, /nv++)
• Old command /ultimatenightvision still works for backwards compatibility
• Updated all in-game messages with new branding
• Permission nodes updated to reflect new name
• Old permission nodes also work; recommended to update to new ones

DEPRECATION: v3 is the last release supporting Minecraft 1.12 or lower