Add an option to ignore query string on static resources

[olsh]

We update the query string for each build for if the content of a static file was changed.
For instance, if the content of styles.css?v=1 was updated, we update the query string, like this styles.css?v=2.

In this case, the lighthouse server considers these files as entirely different and produces many unnecessary differences on the compare page. Please see the attached.

It would be nice to have an option to ignore query strings for such cases.

[patrickhulce]

Great request @olsh! That would indeed be annoying if the query string doesn't change things 👍 We're working on bringing more customization to how this is handled too #154

[patrickhulce]

query strings will now be ignored in 0.4.0, fixed by #318, ref #119