Run Length coding v4

Implements runLength coding for image processing

This version supports encoding and decoding binary images and also large binary signals.
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Change log v4
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o Added comments
o Added help
o Added auto mode-detection
o First two are image resolution
o Added version control at 3rd number
o Fourth digit is 1st element (0 or 1)

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Probable next release v5
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o Optimization for decompression algorithm
o Support for gray scale images
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Comments appreciated.