Support for command block data

[codingMASTER398]

Idea:
Instead of having the output

Block {
  type: 277,
  metadata: 10,
  light: 0,
  skyLight: 0,
  biome: {
    id: 3,
    name: 'mountains',
    name_legacy: 'mountains',
    category: 'extreme_hills',
    temperature: 0.2,
    precipitation: 'rain',
    depth: 1,
    dimension: 'overworld',
    displayName: 'Extreme Hills',
    color: 6316128,
    rainfall: 0.3
  },
  position: null,
  stateId: 5654,
  name: 'command_block',
  hardness: 0,
  displayName: 'Command Block',
  shapes: [ [ 0, 0, 0, 1, 1, 1 ] ],
  boundingBox: 'block',
  transparent: false,
  diggable: false,
  material: undefined,
  harvestTools: undefined,
  drops: []
}

We should have the extra

command: 'say ack'

It would help a lot!

[rom1504]

#134