elm_transit: Support rotation keeping current map effect.
elm_transit: Support rotation keeping current map effect.

Summary:
Support rotation keeping current map effect.

Reviewers: Hermet

Differential Revision: https://phab.enlightenment.org/D1806

rvandegrift/elementary,rvandegrift/elementary,tasn/elementary,FlorentRevest/Elementary,tasn/elementary,rvandegrift/elementary,tasn/elementary,rvandegrift/elementary,FlorentRevest/Elementary,tasn/elementary,tasn/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary