Sprint5 refactor
This branch refactors most of the codebase and merges everything into a single module (racevisionGame).
This has feature parity with the master branch from what I can tell, and fixes a few bugs/issues.
However, the sparkline y axis labelling isn't exactly the same. Instead of being labelled 1, 2, 3, 4, 5, 6, it's labelled (1, 7).
Acceptance criteria:
1. Feature parity with master branch. (There's an app class in each of the mock and visualiser packages.
2. Tests all pass.
3. Code is actually tidier and easier to reason about, and documented.
See merge request !16