This commit rejiggers some documentation of `wasm-bindgen` in a few
significant ways:
* The main landing page now has text and links to the Game of Life
tutorial and `wasm-pack`.
* The "whirlwind tour" was deleted as it wasn't really serving any
purpose that the Game of Life plus the later references weren't already
serving.
* The "no modules" example was renamed to "without a bundler"
* A dedicated section on "Deployment" was added which replaces the
previous "No ES Modules" page. This is hopefully more descriptive and
also prominently mentions the various options for deployment.
This commit is a large-ish scale reorganization of our examples. The
main goal here is to have a dedicated section of the guide for example,
and all examples will be listed there. Each example's `README` is now
just boilerplate pointing at the guide along with a blurb about how to
run it.
Some examples like `math` and `smorgasboard` have been deleted as they
didn't really serve much purpose, and others like `closures` have been
rewritten with `web-sys` instead of hand-bound bindings.
Overall it's hoped that this puts us in a good and consistent state for
our examples, with all of them being described in the guide, excerpts
are in the guide, and they're all relatively idiomatically using
`web-sys`.
