We need some way to manage the games. This should be a class that always has reference to all things regarding your current state in the game.
For this agenda, When the game starts, the manager needs to
- handle loading an initial game state
- spawn players initial unit(s) (as of now only the backhoe/builder unit is required)
- track and manage the resources (there should be initial resource values loaded in on start, and an interface to increase/decrease the resource values.