Autobuild the longstring locale

[Imarok]

To make it easier checking that the gui fits for all translations, the longstring locale should be created by autobuild every time it updates the other translations. For releases the locale could be omitted.

[Itms]

Very good idea, thanks for creating a ticket!

[Stan]

In 27096:

Update jenkinsfiles to match upstream.
Windows now builds the actor editor for autobuilds, and stores the test results.
All bundle now has an option to only build the macOS bundle and uses the number of cores available to build.
docker-translations now builds the long string locale. Fixes #5009.
New script that is run periodically to check if the nopch build still works.
Docker docs now builds the template analyser data and uploads it to the server.
Add the design docs script.
Add a new script to build the game using linux with custom flags, such as gles, clang, special linker etc.