Multiple coprocessors can stop on global topics

[mcm001]

Thought this was already an issue, but maybe not.

IS: Multiple coprocessors will stop on topics like /photonvision/version string and friends. This also probably happens for cameraserver stuff too?
S/B: Move coprocessor metadata into its own subtable like timesync was (but then we need a way to map PhotonCamera<->Coprocessor), or duplicate this information.