grafx - Extensible Java Graphics Package Code

Skipping watermark by default in video generation.

Adding the beginnings of class CommandLineArgs, and using it successfully.

Adding class-level comment to Sampling2xImageConsumer.java.

Adding Sampling2xImageConsumer.java. Unoptimized and untested.

Adding data/three-excellents.blo.

Adding level-26.blo.

Adding 6er-excellent.blo.

Removing the '-pix_fmt yuv420p' from scripts/.compile-video-base.sh .

Commenting out suspend() and resume() in ModernAudioClip for now; adding
comments explaining how we will implement it in the future.

In ModernAudioClip, getting rid of m_playing, replaced with m_constrTime and
m_startedOff. The idea is to do 32 bit integer assignments which are atomic;
we don't want to do a context switch for that, if possible.