message: Update nbt testcase
diff: import { NBT } from '../index'
  import * as assert from 'assert'
  describe('TestEmpty', () => {
  - it('should empty nbt read and write correctly', () => {
  - let nbtRoot: any = NBT.parse(Buffer.from([0x0A, 0x00, 0x00, 0x00])).root;
  + it('should empty nbt parse and write correctly', () => {
  + let nbtData: Buffer = Buffer.from([0x0A, 0x00, 0x00,
  + 0x00]);
  + let nbtRoot: any = NBT.parse(nbtData).root;
  assert.deepEqual(nbtRoot, {});
  - assert.deepEqual(NBT.write(new NBT.Compound(nbtRoot)), Buffer.from([0x0A, 0x00, 0x00, 0x00]));
  + assert.deepEqual(NBT.write(new NBT.Compound(nbtRoot)), nbtData);
  + })
  +})
  +describe('TestSignleValue', () => {
  + it('should signle value nbt parse and write correctly', () => {
  + let nbtData: Buffer = Buffer.from([0x0A, 0x00, 0x00,
  + 0x03, 0x00, 0x03, 0x62, 0x61, 0x72, 0x00, 0x00, 0x00, 0x01, // bar: Int = 1
  + 0x00]);
  + let nbtRoot: any = NBT.parse(nbtData).root;
  + assert.deepEqual(nbtRoot, { bar: 1 });
  + assert.deepEqual(NBT.write(new NBT.Compound(nbtRoot)), nbtData);
  })
  })
  \ No newline at end of file
  