Fix issues with npm security

[Thomas-Boi]

Fixes

• Addressed the security issues that I can. Here's the latest audit
  
• The issues that are left can't be fixed by me. The modules listed (yargs and glob-parent) are used by gulp's latest version and there's nothing I can do to upgrade them. Luckily, since the scripts don't accept user inputs, we should never run into any issues as listed by npm audit
• This also added gulp-footer, which will be used by my upcoming seleniumUpgrade. There's no usage of it yet, I just added the package to see if I need to address any security

Test
Here's the latest script testing the sass modules.

Notes
This took a while because it requires the socketio fix and the open-gl fix.
Also, when you accept this PR, rename the commit to "Close #763: Update NPM packages". I want to see if this closes the listed commit automatically when we merge it into master.

[Panquesito7]

I don't know too much about this (better let @amacado review this), but it LGTM. 👍

[amacado]

Thanks for the update @Thomas-Boi! Very good pull request description! 👍🏻