J2V8-interop

Provides class interop and type marshalling between Java and JavaScript.

Roadmap

1. ☑ Java -> ES6 proxy class-gen
2. ☑ JS -> Java method calls
3. ☑ class inheritance chain
4. ☐ method args marshalling
5. ☐ calling method overloads
6. ☐ calling constructor overloads
7. ☐ overriding Java methods from JavaScript
8. ☐ construct JS-created Java class via reflection