Benchmark And test Odilia

[TTWNO]

We should benchmark the event handlers and the tower infrastructure to ensure we don't have any large bottleknecks. I'm not expecting we will, but it's good to keep an eye on it just in case. Mostly, I'm looking for large allocations.

Additionally, we should have tests for any non-trivial, highly-state dependent functions.

These should be built after #179 as the cache will need to be well tested to be able to accurately test the state as a whole.