CLDR-17947 Add stub pages to site

[macchiati]

CLDR-17947

This is a set of mostly stub pages, meant for cleaning up the site map as per CLDR site organization.

We can clean up and flesh out these pages over time.

Note: I added a few missing pages with just links to the old site, until we get them converted.

• This PR completes the ticket.

ALLOW_MANY_COMMITS=true

[macchiati]

I realize that this is under the site improvement ticket for CSS. I realized afterwards that there is a somewhat better ticket number, but I'd prefer not to have to redo the PR.

[AEApple]

LGTM, I have minor edits that I would propose to some of these, but I think that is probably better done as we update pages.

[macchiati]

Sorry, I was adding some pages during the time you were reviewing. Done now, if you could stamp.

These are the missing pages with just links to the old site, like: docs/site/development/coding-cldr-tools/cldr-file.md

[AEApple]

LGTM! Let's clean up the pages in a separate ticket since we should probably update some of these a bit.

Do you think we can add a freshness date going forward so it's easy to know the last time a page was fully reviewed vs. just minorly edited?

[macchiati]

I agree that it would be handy to have that info. Let's discuss the best way to do that in the infra wg