[Feature] Adds trait that replaces your screams with HL1 Scientist Screams

[Ryumi]

Because the idea made me so happy to think about I just had to do it. Now you can DARGH and STAHP to your heart's content!

Notes:

• The trait costs 2 points to take. Intention is that like the dummy thick trait, despite giving you no mechanical advantage it's a special and fun trait that requires commitment to take so that not just anyone can scream like this.
  

And here is a video of what it looks like in action!


RY-02: pr
https://github.com/goonstation/goonstati...6/pull/191

[ZeWaka]

Denying due to copyright issues.