added md5 implementation straight port from c
cleaned code per @utkarshkukreti's suggestions
removed whitespace + long line warnings
Add Short Circuit Evaluation
removed reduntant types
removed warnings from build
Added comment to the allow(dead_code)
Merge pull request #145 from pfalabella/build-warnings

removed warnings from build
Merge pull request #144 from pfalabella/md5-implementation

added md5 implementation straight port from c
added zig-zag matrix implementation
Merge pull request #146 from pfalabella/zigzagmatrix-impl

added zig-zag matrix implementation