Clarify license and add license file

[ekpyron]

I'd consider using your implementation in a project, but I'm a bit hesitant, since the licensing is not entirely clear.
https://github.com/Benzinga/lz4js/blob/master/package.json lists ISC as license - is that accurate? Would it be possible to add a COPYING or LICENSE file to the repository to clarify this beyond any doubt :-)? I'd very much appreciate it :-).

[jchv]

Sorry about that. I wrote this library while working at Benzinga, and indeed it was intended to be released under the ISC license, but unfortunately I seemingly forgot to put a copy of the license anywhere.

I’ll try to see if I can reach anyone at Benzinga about it.

[ekpyron]

Mo worries - we'll probably end up using a webassembly implementation (https://github.com/gorhill/lz4-wasm) in the end anyways - but it may still be nice to clarify the licensing for potential future use cases!

[jchv]

Cool! Good luck with your endeavor.