Add the core of strategy manager to coppercore

summary

Most of StrategyManager is not game-specific:

In full auto it is effectively a manager of queued commands based on game-specific records pulled from JSON files. This can be generalized significantly to a core strategy manager
In teleop, it is essentially a signal manager for network tables and bindings. This can also be generalized by registering game specific behaviors/actions/variables and linking them to each other