5e32a1e Add block_size_rss and enhance sample.

Authored and Committed by Carlos O'Donell 7 years ago
    Add block_size_rss and enhance sample.
    
    A "block size" RSS computation tool is added.
    
    The Nth sample sampling tool is enhanced to sample from a range.
    
    README.md is updated to describe the tool changes.
    
        
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