Support Angular by exposing both CommonJS and ESM imports

[maucaro]

As discussed, these changes allow for easier consumption from environments other than Node (Angular for example) by exposing both CommonJS and ES module imports as described in Conditional Exports.

[maucaro]

Second commit removed the 'util' shim for Node 10 compatibility.

[srenatus]

Thanks, this looks good to me. Could you revisit those commit messages, though, they seem to be missing titles...

@aron Any concerns re: removing those keys from the package.json you'd be aware of?

[srenatus]

I meant these two commits: https://github.com/open-policy-agent/npm-opa-wasm/pull/190/commits

But it's OK I can squash and merge them.

[srenatus]

Nope I can't do that without the DCO check: please have another look here -- https://github.com/open-policy-agent/npm-opa-wasm/pull/190/checks?check_run_id=6235937268

[maucaro]

I don't know how to fix the DCO check. If you look at the message, it says it is expecting "maucaro@google.com" instead of "maucaro@outlook.com" yet "maucaro@outlook.com" is my verified email in my profile. Happy to fix it, just don't know how.

[srenatus]

I suspect it's the commits author line. You can't inspect that via GitHub, but git log will tell you.

[maucaro]

Looks like we are good now!