grafx - Extensible Java Graphics Package Code

Adding launch-computer-player-test.sh.

Adding ComputerPlayerLevelAction, ComputerPlayerTest, and
LaunchComputerPlayerTest.

Reverting SinglePlayerLevelAction to being a human game.

Reverting level 23 to having standard two second system drop timer.

Tidying up the EvalFunction metrics.

Slowing down the animation a little bit. This is mostly for the computer
player, to make the play look simpler.

Went over ComputerPlayer with a fine-toothed comb.

Giving the SinglePlayerLevelAction computer player the user input.

The computer player actually works now.

Made huge progress on ComputerPlayer last night, but wasn't able to commit.