* Fix Errors:
- Item can always be leveling (instead of not setting)
- Can’t put out item in /forge stat. If you try -> lost
- Resourcepack display wrong things
- Holding helmet, equipments,.. in main hand still earn stat, buff
- Stat can't be negative (<0)

*items.yml:
- stats, buff, gem option now use ~ replace for - to set a range
ex: '10-30' --> '10~30'
- new description (see below)

* Folder Change: managing is now easier than last version


* Item Type: see in attributes.yml. Used for defining slot of item.
- Contains: ring, artifact, belt, amulet, gauntlet, helmet, chestplate, leggings, boots, offhand, mainhand.
- Set by: /sattribute type <type ID>
- New description in items.yml: ‘type:<type ID>’ to set type.

* Inventory: see in /forge stat. Store player item, they can earn stat, buff from these slot.