Define the "PathfinderInterface"

[LiquidityC]

When implementing a pathfinding algorithm it needs to conform to some structure so that the framework can allow it to operate. This is probably best done through an interface but I'm open to cool ideas.

My thoughts are this:
PathfinderInterface with the following methods:

• setup(Grid), agents and cells should be accessible through the grid
• update(), This is where the algorithm runs (called once per "tick")
• cleanup(Grid), clean out all the data that was initially setup.

Bonus. If you can find a way for the framework to list implementations of this interface dynamically that would be sweet. We could extend upon this with some sort of dropdown or whatever that executes the selected algorithm once you're done "drawing".