A test file - 'tests/TestSkills.java' is added. Test module is updated to run this test file.
A new module - 'skills' is added. It has categorized skill sets - phisical attacks, offensive buffers, and defensive buffers (will be added soon) with their few skills (methods) and interfaces - names, effects.
A file 'tests/README' is updated. A log file 'update/updates_by_wono.log' is updated.