Merge branch 'Improve_Follow' into improving_and_refactoring

backends/controller_base.py

backends/trained_policies/follow/follow_weights_actor.h5f

backends/trained_policies/follow/follow_weights_critic.h5f

backends/trained_policies/highlevel/highlevel_weights.h5f

env/simple_intersection/simple_intersection_env.py

options/simple_intersection/maneuvers.py