3.0

A restructuring of pkg/machine and other refactoring.

• Package Organization
  Introduced machine.Plugboard, and machine.Reflector
  structs to replace previously used arrays.

• Naming Scheme
  Implemented a new naming scheme so functions that
  serve similar functionality in different structs can have
  more consistent naming.

• Documentation
  Updated package docs + Added a "What's Different?"
  section to README to showcase the project.