优先级动作组

根据优先级由大到小的顺序，判定条件是否满足，执行首个满足条件的动作组

写法

actions:
  - condition: 'player.hasPermission("user.stupid")'
    priority: 3 #优先级数值
    list: # 动作组列表
    - 'tell: you are stupid'
  - condition: 'player.hasPermission("user.default")'
    priority: 2
    list:
    - 'tell: you are nobody'
    - 'console: give %player_name% diamond 1<chance:0.8>'