Attendance - Editable status titles

Status title names are locked-in (Present, Absent, Excused, Late, Left Early). Doesn't leave flexibility if instructor wants to use different terms based on their course setup.

The ability to edit titles (that only affect that course) would give some flexibility to instructors.

Attached example UI of another open-source LMS (that shall go unnamed) as reference. That LMS does its grading slightly different than Sakai so the Grade column in screenshot isn't exactly needed for reference.