grafx - Extensible Java Graphics Package Code

Getting rid of most cases of java.applet.AudioClip usage. Moving the new audio
framework into package com.nerius.audio. This is a minor change which touches
many files.

Adding class com.nerius.game.newaudio.AudioClip. It's an interface.

Renaming m_lastPlay -> m_lastPlayMillis, timeNow -> timeNowMillis,
m_lastLoop -> m_lastLoopMillis in ModernAudioClip.

Renaming m_constrTime -> m_constrTimeMillis,
m_startedOff -> m_startedOffMillis. Adding m_clipLenMicros.

Implemented CommandLineArgs.queryFlagWithArg() but it's untested.

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.