crypto.pseudoRandomBytes but for use with browserify

 In node it just returns crypto.pseudoRandomBytes but in the browser it uses
 randombytes module if available else it seeds a prng based on chacha20poly1305
 .
 To be clear there is no legitimate reason for you ever to want to use this.
 The algorithms used in this module are **NOT** suitable for cryptographical
 usage.
 .
 This package is provided **ONLY** to run tests of node-crypto-browserify.
 .
 Node.js is an event-based server-side JavaScript engine.