Exporting `RuntimeError` and `LinkError`?

[jparismorgan]

Hi there, I noticed that we export CompileError (defined here and exported here), but we don't do so for RuntimeError and LinkError:

• https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/JavaScript_interface/RuntimeError
• https://developer.mozilla.org/en-US/docs/WebAssembly/Reference/JavaScript_interface/LinkError

It's simple to do so in my own code, but would be nice if they were exported from polywasm as well. Thanks!