JtotheThree/bevy_northstar

AI Summary: Create a Bevy example demonstrating the use of the `bevy_northstar` crate for pathfinding with fluid, non-grid-based movement. This example should showcase how to integrate the crate's pathfinding capabilities into a game where entities move freely, rather than being constrained to a grid. The example should also serve as a test case for future features, such as dynamic obstacle avoidance.