Allow Users to submit more than one student at a time

[ibarrezueta]

Description of the Issue

With the current add student page, the user can only add one student at a time. There should be a way to add more than one student at a time 1) in order to reduce the number of times one is trying to access the db, and 2) to make it easier for a user to add students.

This can be done by using a CSV file with student names, or by providing the user with more than one student form at a time by using ajax.