refs #18 Implement data exporter in DecisionTree.
refs #18 Add data files.

Because Yawei has Windows, and Windows sucks.
Merge branch 'enhancement/13_matlab_to_cpp' into enhancement/18_visualizer
refs #18 Add animated plotter.
refs #18 Update data file paths in plotpath.m.
refs #18 Remove useless rule in StuntzHuntz.
refs #18 Swap X and Y axes.
refs #18 Use different map.
refs #18 Minor additions.