Splits state tracking out of Kenobi

[barulicm]

Two key ideas motivated these changes:

1. Kenobi has become quite large as it has crept towards owning everything about how our robots do what they do
2. Planned improvements to our path planning system require gameplay state objects (world, ball, robot, etc) to be available outside of Kenobi

Towards these goals, this PR refactors our game state tracking code out of Kenobi into a new ateam_game_state package. This new package provides a node which publishes the now global /world topic, consumed by Kenobi and other nodes.

I've aliased the old Kenobi types to the new game state types to minimize code changes, so most files touched are just redirecting includes.

No behavioral changes are expected from these changes.