[+] Added Back Item
[+] Added new Configuration (BackItemMode - Settings.yml)
[+] Added new Configuration (BackItemName - Settings.yml)
[+] Added new Configuration (BackItemID - Settings.yml)
[+] Added new Configuration (BackItemSlot - Settings.yml)
[+] Added 18 new Heads Slots
[#] Heads Menu has been embellished
[#] Change Head Permission (lobbysystem.heads<number> to lobbysystem.head<number>)