WIP HTML Reporter: Fuzzy search using fuse

[ventuno]

Sample implementation of: #1438 (Fuse.js-based).
Below search results with different keywords (on test/index.html):

Search: "assert".

Search: "beforeEach".

Search: "promiseaware".

Search: "script".

[trentmwillis]

Overall I like this implementation better than the fuzzysort one. A few questions, but once this is rebased onto master (since I merged the other PR) it's probably good to go.

[ventuno]

@trentmwillis closing this in favor of #1442 as I was having some trouble after fetching the latest upstream changes.

Also, I'm a little partial to the fuzzysort implementation just because the set of results looks a lot more predictable than Fuse.js (see attached screenshots). See for example the search for "beforeEach" where results almost looks sorted "at random" or "script" which returns a number of unrelated results.

If you feel strongly about Fuse.js, then let me try and play a little more with its configuration parameters and see if I can come up with better results. I would strongly recommend that you fetch both locally and try them and see the difference for yourself.