Add configurable requirements for blocks

[Fly1337]

In this PR, I added AuraSkillsLevelRestricts functionality to the main plugin.

See this config example:

requirement:
  blocks:
    enabled: true
    list:
    - material: diamond_ore
      allow_place: true
      allow_break: false
      requirements:
      - type: skill_level
        skill: farming
        level: 10
        message: 'You must be Farming 10'
      - type: permission
        permission: some.permission
        message: ''
      - type: excluded_world
        world: world
        message: ''
      - type: stat
        stat: strength
        value: 10
        message: 'You must have at least 10 strength'

It essentially allows setting requirements for blocks to be broken as well as placed, with the options for: skill levels, permissions, excluded worlds and stat levels

[Archy-X]

Initial review before testing requesting some minor changes