Add lookup tables as git submodules

[dr0i]

Do [edited:] git config --local submodule.recurse true once in your checked out repo. Any further git pull will automatically update the submodules.

See #1893.

[blackwinter]

Do "git config --global submodule.recurse true" once in your checked out repo.

I don't think that's such a good recommendation. I'd suggest --local instead (which is the default). Or just use git pull --recurse-submodules explicitly.

[dr0i]

--local is good. (I like to use the "established" commands (here git pull) to work with the new setting - not only because of cronjobs and scripts (which will work without adapting them).

[TobiasNx]

src/test/resources/deweyLabels.tsv should also be moved into the maps folder.

[TobiasNx]

Also we do not need a specific src/test/resources/alma/maps folder a folder src/test/resources/maps would be good enough.

[dr0i]

We have src/main/resources/alma/maps/ and thus src/test/resources/alma/maps/ is symmetric - which is a very nice property and should be kept.

Re dewey: done that
Re further discussion of where to put test resources: that's not the scope of this PR/issue so we should open a new one if needed.

[TobiasNx]

Two further questions:

Shouldn't we delete the old lookup file in the old maps folder that are now used with the submodules?
Also shouldn't we document in the maps folder, that for certain maps the submodules are used, not just in the over-all README.md

Otherwise +1

[dr0i]

I've deleted now src/main/resources/alma/maps/generatedAlmaSuppressedLocations.tsv.
Re documentation: I don't understand why we should put a readme into the maps directory when these lookup tables are not read from this directory.

[TobiasNx]

I've deleted now src/main/resources/alma/maps/generatedAlmaSuppressedLocations.tsv. Re documentation: I don't understand why we should put a readme into the maps directory when these lookup tables are not read from this directory.

okay, then go for it.
I just thought that it helps to find missing map files when somebody does not find it in the folder. But then go on. +1

[dr0i]

Unfortunatley it seem not possible to have the submodules not in a detached state (may depend on the git version) but you have to do git submodule update --recursive --remote after git pull. Will update all scripts and README.