Add missing Rake configuration file

Authored by zeljkofilipin on Jun 6 2018, 12:23 PM.

Description

Add missing Rake configuration file

selenium-WikibaseLexeme-chrome is failing with No Rakefile found because it expects it in the root of the repository.

Bug: T194252
Change-Id: I3d2e3eff1c0aef947d1f813af0e719bbccfbceee