Publish translated localized API documents

Publish the French and Spanish translated API documents from
api-site repository.

This creates a new job-template api-site-tox-build-{lang} and uses it
for languages fr (French) and es (Spanish).

Change-Id: I357049ae53eb3aff64f97d33d27b44c6489481ee
Merge "Publish translated localized API documents"