[Student View] Add the capability to bulk manage test student accounts created by student view

Problem statement:

Excess test student accounts created by faculty use of student view clutters system when these accounts are not used anymore. In addition, some API integrations attempt to pull these test students in addition to regular students giving an error for each test student in the system causing excess data to look through when troubleshooting account changes via API.

Proposed solution:

Option 1: Have test students viewable by admin in the 'People' view so that they can be removed from the system based on last login date. Option 2: Have a dedicated admin settings page for bulk management of test student accounts including scheduled removal of non-used accounts from sections.

User role(s):

admin