Update [diff.cpp17.library] to match new headers since C++17

[zygoloid]

At least <format> is missing from this list; check for others too once we've merged all the motions.

[jwakely]

<stop_token> <semaphore> <latch> <barrier>

[zygoloid]

Turns out we're also missing <coroutine> from the list of headers. I have a patch.

[zygoloid]

(<charconv> and <source_location> are missing too.)

[CaseyCarter]

<charconv> is a C++17 header.

[jensmaurer]

I'll update the pull request.

[jensmaurer]

<coroutine> is already present in Annex C, but it's missing from [tab:headers.cpp].