Follow symbolic links

[cgrima]

Allow NC to follow symbolic links would provide Unix admins an extra way to oragnize their storage and link them to NC. Some usage examples are available on the forum:
https://help.nextcloud.com/t/symlinks-in-external-storages/4149
https://help.nextcloud.com/t/symbolic-link-support/220

Similar issues were opened for OC, but not solved:
owncloud/core#17669
owncloud/core#8976

Steps to reproduce

1. On a Unix-like system, symlink (ln -s) a non-empty folder to a storage accessible to your NC server.
2. Optionally, tell NC to re-scan the storage.
3. From within NC web portal, enter the symlinked folder.

Expected behaviour

The folder content should appear

Actual behaviour

The Folder is empty

Server configuration

Nextcloud version: 10.0.1

[nickvergessen]

Duplicate of #1257 (comment)

Please comment in there, if you disagree.