Add ES6 module support

[Nevraeka]

It could get more involvement from the community if you were to provide ability to import & export the public api in es6/.mjs in an easy fashion in the browser & node environments. This API is pretty rich in data and I'd love to see it flourish more.

[raineorshine]

Thank you for the suggestion. I am not actively involved in development any longer, but I would support anyone who would like to work on it.

[Vincent440]

Is this a project that is still open to new collaborators?

[raineorshine]

@Vincent440 Sure! I actively review all issues and PR's. I encourage any features/improvements that fit the scope of the project.