Update whitelist.txt -Add @Zephyrel

I'm an aspiring gamedev (who can hardly program, at that; more of an arts/music/math guy) who keeps watch and tabs on GG because it's important to him and the issues and things that surround it. I'm not an asshat nor another sheep, and generally a crestfallen person, and though I don't talk much, well, I'm one who's got a lot to say. Eventually.

I think I did this right, now.