Adding some more games

Adding some of the PICO-8 experiments I did for Advent of Code 2022. This is the second game I made for the challenge, Elf Paper Scissors, an implementation of Rock Paper Scissors. Each of these games was done in an hour or two, so don't expect a lot.

Once the challenges became too difficult to both find the solution and write a game in the same night, I stopped writing games. I thought I would get further than I did...

Since each new game built off the previous game, more elements come in over time. This one is still pretty easy, having only done one previous game in the series. I think this is the first one that introduced music.