Add a Readme.md file

Better, readable error message for file location

Add file path validation

Fixing a comment

Add some comments

Add optional dataset optimizer

Add training data scores, annotate nodes with their hit count

Make program.cs pretty again

Add trimming tree logic

Perf improvements, clean up code

Try to fix memory

Add a test for an attribute value you've never seen

Add a tool to visualize the tree that was learnt

Add a unit test for many boolean variables (OR, AND, XOR) + many bugfixes coming from it

Add recursive behavior for trees + chi square test