Adding a new nightmare level four.
Adding scripts/youtube-shorts-video.sh.
Adding '--noaudio' option to script launch-computer-ai.sh.
Adding "--noaudio" option.
Tweaking Tetris parameters a bit.
Adding PAD_16_9. Tested and working at least for Tetris case.
Changing appWidth.
Fixing video issue with Tetris; missing audio.
Fiddling with Tetris layout.
Adding SKIP_WATERMARK capability.
