Replace GUID generator

[peterekepeter]

Generating GUIDs using Math.random() is of questionable quality at best, and has chances of creating a package with conflicting GUID

More info here:

https://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid

[sapphire-bt]

Thanks for the link. I'm pretty sure I saw this as I was making the plugin, but for some reason I assumed Crypto was a third-party module (which I wanted to avoid), hence why I opted for the native Math.random().

Expect an update soon!

[peterekepeter]

yep, good job on f3593a1