[test-only][full-ci] Given step implementation of creating public link in the server

[ishabaral]

Description

Implemented on the server steps in the local test directory. This Given step implementation creates public link in the server.

Renamed step:

-Given user "<user>" has created a public link on the server with following settings
+Given user "<user>" has created a public link in the server with following settings

Part of https://github.com/owncloud/client/issues/10432