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Changed width to 16.
Changed chars to bytes, brightness bug fixed.
This class adds support for Dacwes to any sketch.
Generalized a bit more. Addressing modes.
* Now centers properly regardless of size
* Now has configurable spacing
* Configurable pixel density per physical channel
* Added flip-flop addressing mode
* Separated addressing from painting
Added support for horizontal mounting and configurable size
Original version for BM 2010