Add last 4 of social to student profile

[JacksonParsells]

Add field to backend and frontend

[JacksonParsells]

@taarikabala1
@sarahsvahn
@sfrancis21

[JacksonParsells]

Add on the backend an area to support an included last 4 digits of the social security number, and on the frontend a field as well for it. Also modify the side area of the individual student in order to show the new SSN data.

[taarikabala1]

Added last 4 digits of SSN as a field on the backend and frontend. We are unable to successfully add a student and view a student so we don't know if it works completely, but it seems to show up on the add student page of the frontend. We also weren't 100% sure how to correctly push our branch to github so everything is saved on my computer and we can show you what we have during the next meeting!