Add the 2022 Hack Week schedule

[rocco8773]

This PR creates the 2022 Hack Week scheduled.

• The schedule page was mostly copied from the 2021 page, but with updated wording.
• The 2022 schedule developed in google docs is embedded on the schedule page.
• A few erroneous 2021 links on the landing page were updated to point to the 2022 content.
• The 2022 schedule page was exposed to the top menu and 2022 about page.

[namurphy]

It's looking good! I only have a few minor suggestions. I'll approve it now, so feel free to merge it when you're satisfied with it. Thank you for doing this!