Update some of the data files in repo from openflights.org

[reedy]

Trying to test #1398, I noticed BER airport isn't actually in the "default" dataset in the openflights repo.

I know we have data synchronisation issues, but would be nice if we had a way to potentially dump updated airlines, airports and planes tables (at least) to their data/*.dat files to allow to populate "new" dev installs to be somewhere near up to date.

Routes can be done too...

We have import-vrs.py to update the database table for routes.. But no script currently to get it from the table either. And can't populate it locally myself due to #1408

[reedy]

CC @jpatokal

[reedy]

#1417 (comment)

I'm a bit hesitant to make this too easy as long as the website (https://openflights.org/data) makes it seem like the latest data is not meant to be all that easily available:

The GitHub copy is only a sporadically updated static snapshot of the live OpenFlights database (see revision log). If you would like an up-to-the-minute copy, or you would like your data filtered by any information available to us (eg. number of routes at the airport), do not hesitate to contact us.

How sporadic are they supposed to be? :)

I think they're at most ~6 years old, last done in 5d623a6 ?

planes.dat is slightly newer at ~4 years in 4847887

airports.dat last done in 2019 - e3bc6de, which is 3 commits newer than 5d623a6

[jpatokal]

I'm taking the first week of September off, and plan to spend most of that time doing an update of airlines & airports.

[jpatokal]

Update to airlines in progress, tracking at #1439 .