Add Bahrain Polytechnic to the list of universities

Website: http://www.polytechnic.bh/
emails: number@student.polytechnic.bh
Revert "Add Bahrain Polytechnic to the list of universities"

This reverts commit 6a5d74df5cc1a18a82e55c269035ea9c84df7935.
Revert "Revert "Add Bahrain Polytechnic to the list of universities""

This reverts commit 839bc17a3e133de7e0af299d80e3e5372f24c5c7.
Add Bahrain Polytechnic Tutors email format