Convert the "My projects" page to a view

Working on this now...

Depends on #76725-49: Refactor project issue module to use Views

This is a little wonky since it hard-codes a specific view to embed... it'd be nicer if we had a variable for this and potentially a UI to select it, but this works for now.

Committed to HEAD.

Setting back to active since project/user/[foo] is returning a 404 for some unknown reason of D6 menu hell i haven't yet tried to debug. :(

Also, the RSS feed for this view doesn't exist, yet (and I'm not sure how to appropriately attach that given how we're embedding the view...

It might be better to move the menu item to the view itself, and have a PHP header on the view that renders the funky table of project links and summary data...

Setting back to active since project/user/[foo] is returning a 404 for some unknown reason of D6 menu hell i haven't yet tried to debug. :(

See #364496-1: project_legacy_paths menu items break all kinds of things.

Still active for RSS and a setting (and maybe UI) to select the view to embed here.

Committed a fix for this to HEAD so that the view is handled via page and feed displays, and the table at the top is inserted via hook_help (for now).