Change Strings to IDs

[frodare]

• change the target type to an integer keyed by the Minecraft item IDs: http://minecraft-ids.grahamedgecombe.com or entity ID for hunts: http://minecraft-ids.grahamedgecombe.com/entities
• also change the reward type to an integer for consistency and better in game performance/simplicity
  • 1: XP Reward
  • 2: Item Reward

[
    {
        "type": "gather",
        "target": {
            "type": "sand",
            "quantity": 30
        },
        "reward": {
            "type": "xp",
            "quantity": 4332
        }
    }
]

to

[
    {
        "type": "gather",
        "target": {
            "type": 12,
            "quantity": 30
        },
        "reward": {
            "type": 1,
            "quantity": 4332
        }
    }
]