Add Konami Code

[TJScalzo]

@gisellegk and I were talking about adding support for the Konami Code to the bingo site since it's a video game theme.

I found this repository that can run a function when the code is entered. All we need to do is think of what we want to happen.

[gisellegk]

random brainstorming:
change the color scheme? activate 2 player mode??
Make an 8 bit character pop up on screen and start doing random stuff?

[gisellegk]

also we should probably ship this and then add the new feature ?? we need to post this to CD sooner rather than later :)

[TJScalzo]

I've posted it to Chief Delphi here. We'll have to wait and see how much traction it gets.