Adds ability for admin to edit and approve employer job postings

Adds checkbox to form page for admins to approve jobs. Checked
check boxes will indicate an approved job posting that will be
displayed on a separate page.

When a non-administrative user is on the website they
will not have the ability to approve or disapprove jobs.
They will also not have the ability to edit job postings. Their
privilege level is set to read-only.
Adds ability to only display approved jobs on the display page

Once an admin has approved a job, it will be shown on the
display page. If it is not approved, it will be in a queue on the
admin's page.
Routes to admin view after login