This was missed from cl/7536.
Change-Id: I12c12bf91bad00c30bb63518d65c320a61cbf442
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7641
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This moves the various projects from "type-based" folders (such as
"services" or "tools") into more appropriate semantic folders (such as
"nix", "ops" or "web").
Deprecated projects (nixcon-demo & gotest) which only existed for
testing/demonstration purposes have been removed.
(Note: *all* builds are broken with this commit)