Fix: Readable Stream read 16,384 objects

[SlavikPr]

Fix readebleStream in objectMode read 16,384 object and ignore highWaterMark.

my suggestion:

   // function - setReadableObjectItem(input: Readable, parent: Item)
   const item = <any>{
      type: 'readable object',
      async read() {
        try {
          let out = '';
          // if send size as undefined ReadebleStream will use highWaterMark
          const data = await readAsPromised(input);
          if (data === null) {
            if (i && that.indent) {
              out += `\n${parent.indent}`;
            }

[coveralls]

coverage: 0.0%. remained the same
when pulling 7bd1310 on SlavikPr:master
into ec71d61 on Faleij:master.

[Faleij]

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