Moved the first Wikidata job from WMDE Jenkins

Will be triggered once a day at 12:00 pm.

TODO The job should be using our project structure.

Created job:
browsertests-Wikidata-wikidata.beta.wmflabs.org-linux-firefox-sauce

The job was moved from
https://github.com/wmde/jenkins-job-builder-config

Paired with: Tobi Gritschacher
Change-Id: Ic5a096753e27a53c90e17e64128e4af6cb2cf7f4