[Feature request] Enable custom output logging level (quiet, verbose, info, etc)

[niedzielski]

This is a feature request to enable the wasm-pack log level to be specified 👍

Now that rustwasm/wasm-pack#694 is merged and released, it should be possible to customize the output level wanted. As far as I can tell, wasm-pack-plugin hardcodes this level to verbose so it's not easy to change the level to warn or quiet.

As mentioned in the wasm-pack v0.9.0 release notes, these logging arguments must appear before the command so wasm-pack-plugin's extraArgs property cannot be used. However, I think a new property, perhaps called simply args, could be added to allow for log level (or other options) to be passed and default to whatever makes sense (currently --verbose).

[xtuc]

I published v1.2.0 with that feature

[niedzielski]

Thank you, @xtuc!