unlockCode =
BitsPlusUnlockCode
OBSOLETE:
BitsPlusEncodeClutRow is now self-sufficient.
BitsPlusUnlockCode is no longer needed.
Fill up an array with the magic numbers required
to get the Bits++ to use the first line of the
frame buffer as the CLUT.
Psychtoolbox/PsychHardware/BitsPlusToolbox/BitsPlusUnlockCode.m