Add XP (Entity Action Type)

Gives the player experience points or levels. A negative number of levels takes levels away.

Type ID: apoli:add_xp

Fields

Field	Type	Default	Description
`points`	Integer or Expression	optional	Experience points to give. It can't be negative.
`levels`	Integer or Expression	optional	Experience levels to give. A negative number takes levels away.

"entity_action": {
    "type": "apoli:add_xp",
    "levels": 2
}

This gives the player 2 levels.