Add WASM compiliation support

### Motivation

People may want to compile ROHD into WASM (https://dart.dev/web/wasm).

Note that the "WASM compatibility" score will be affected in the future on pub.dev:
https://pub.dev/packages/rohd/score

We already have javascript compilation and testing in the repo to make sure ROHD can run in javascript environments. We should add WASM as well.

### Desired solution

Add WASM support and test as part of CI

### Alternatives considered

_No response_

### Additional details

_No response_