Reduce technical debt

[Goju-Ryu]

Having been developed by many people with a lot of trial and error, a lot of debt has been piling up.

What to do:

• remove inconsistencies in design
• remove unused code
• replace ad hoc solutions with more sustainable solutions
• evaluate interfaces
  • ensure interface segregation
  • ensure implementing classes and interfaces fit conceptually
  • ensure that the most appropriate types are used for arguments
• refactor to ensure clear and consistent naming
• refactor to ensure manageable package structure
• review all test to ensure that they test what they are meant to and does it thoruoghly

Particularly indebted areas:

• src/main/java/model/*
• src/main/java/control/*
• src/test/java/*