[LAFURE] Develop Items

Decstription:
Allows you to change the basis (Name/Description) of the item.

Commands:
/developitems - help with commands.
/developitems name set <String...> - setting a new name for the item.
/developitems name get - getting item name.
/developitems lore set <Line> <String...> - sets a new description on the item description line.
/developitems lore get <Line> - gets the line describing the item on the line.
/developitems lore remove <Line> - removes the description line from the item on the line.
/developitems enchant set <Enchant> <Level> - sets the enchantment level.
/developitems enchant remove <Enchant> - removes enchantment.
/developitems flags set <Flag> - sets flag.
/developitems flags remove <Flag> - removes flag.

Permissions:
developitems.use - command access: /developitems
developitems.name.set - command access: /developitems name set
developitems.name.get - command access: /developitems name get
developitems.lore.set - command access: /developitems lore set
developitems.lore.get - command access: /developitems lore get
developitems.lore.remove - command access: /developitems lore remove
developitems.enchant.set - command access: /developitems enchant set
developitems.enchant.remove - command access: /developitems enchant remove
developitems.flags.set - command access: /developitems flags set
developitems.flags.remove - command access: /developitems flags remove

Plans:
- support properties (NBT tags);
- support custom damage/protection/enchants/properties;
- support config files.