PLF-5381 Content Explorer: Error on Relation Panel of WAI Portal's home page

Problem analysis
* Reason of above problem is due to hard-coded uuid of language symlink from xml deployment file.

Fix description
* For creating new portal: add plugin AddTranslationPlugin for adding translation when creating new portal.
Merge commit '3cfec43fb598c96e473ea5ece6ae3725e12c0c0c' into HEAD