feat: stream.pipeline

[ronag]

Fixes: #106

stream.pipeline(
  fs.createReadStream('source.raw'),
  client.pipeline({
    path: '/',
    method: 'PUT',
  }, ({ statusCode }) => {
    if (statusCode !== 201) {
      throw new Error('invalid response')
    }
  }),
  fs.createReadStream('response.raw'),
  (err) => {
    if (err) {
      console.error('failed')
    } else {
      console.log('succeeded')
    }
  }
)

[ronag]

This could use some optimization. But I'm putting in place for now so that people use it instead of rolling their own. That way once we optimize this everyone will reap the benefits.

[ronag]

@szmarczak

[mcollina]

lgtm