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## Description
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you want here. -->
I've used the popular `owo-colors` library to colourise the output of
the `packet_inspector`.
This makes it a lot easier to see who's sending what for debugging
purposes.
In future, I'd like to be able to filter out common, low-information
packets like `SetPlayerPosition` and `KeepAlive` as well, but that's not
in this PR.
![image](https://user-images.githubusercontent.com/28905212/218880818-69c0461c-bd23-45c4-9fd4-7c5868be4b67.png)
## Test Plan
No tests - just eyeball 😄.
Adds `tracing` to `valence_protocol` so we can log debug info about
partially decoded packets. `packet_inspector` has been set to print log
messages at the debug level.