Initial commit
Setting up git repo. Basic README file added.
Add basic JUnit dependencies to Maven, for running test framework.
Interface added. Skeleton class built. Parameterised testing for .generate() method implemented.
main() added to skeleton class. Tests written to ensure exception generation on invalid argument being provided.
Moved main() function into separate class, refactored tests to match this. IntToRoman constructor now sets up some required data for the generate() method.
Implemented the generate() function and also the main() method to allow calling from the command line. Shaded in the lang3 library as part of the package goal, so that it does not have to be separately installed when copying the jar to other machines.