Changes to Get Teacher Assignments

added the optional property items/access to the response with the 200 status

added the optional property items/has_assigned_classes to the response with the 200 status

added the optional property items/locked_by_me to the response with the 200 status

added the optional property items/locked_by_sharing to the response with the 200 status

added the optional property items/locked_by_teacher_names to the response with the 200 status

added the optional property items/sharing_options to the response with the 200 status

added the optional property items/teacher_name to the response with the 200 status