Fix FileMaker layout list parsing

[airmoi]

Recursively parse layouts inside folders
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[janober]

Thanks a lot! Got merged.

As I still do not have FileMaker I simply have to trust you that the changes improve things. Reading through the changes it does not look like it would break anything for existing users and is so no breaking changes which is the most important thing.

[airmoi]

Great,
I agrea it can be hard to test a platform which you know nothing about.
You may download a trial version on FileMaker's website if you have time for it on day.
For now, I can guarantee some kind of maintenance on that node.
Also, let me know if you need some help to document the node's page.

[janober]

A trial version will sadly not help as there does not seem to be a version for Linux.

Anyway, you seem to know what you are doing so if you say you test it always properly before, I am OK with it.

Thanks will get back because of the documentation.