ES6 module support

[z3dev]

Expected Behavior

Currently, there is no way to use the various packages as standard JavaScript modules. For example, in browsers...

<script type="module">import {primitives} from "https://unpkg.com/@jscad/modeling";</script>

Actual Behavior

I believe that this can be accomplished without any code changes by using WebPack, creating both UMD and ES6 modules.

Steps to Reproduce the Problem

1. Not possible.

Specifications

• Version: V2
• Platform: All
• Environment: all