Compatibility with bjornstar/blob-polyfill

[jscinoz]

Add compatibility with the fake Blob objects created by blob-polyfill to allow the use of readable-blob-stream with NodeJS.

This is mainly useful for headless unit testing of browser code that uses Blob/FileReader.

[michaelkantor]

I'm investigating this use case as well. Scenario is having a JS library designed for web, but which has components that should be able to run on NodeJS.

[jimmywarting]

Using the FileReader is now discouraged, it's better to use the new promise based read methods on the blob itself .arrayBuffer(), .text(), .stream() instead...

it's a unified way to read any blob instances/polyfill without knowing any internal (private data/buffer)
NodeJs have buffer.Blob built in now, but they are not going to implement any FileReader for it - since there is no need for it.

Almost think this repo/package should be deprecated/archived...