Report individual inconsistent keys in state check

[bernatfp]

Fixes #23

Example:

(.venv) bernat@Bernats-MacBook-Pro validator-swarm % python -m swarm state-check
Fetching all keys registered in validator...
Fetching all keys registered in remote signer...
Fetching all keys registered in CSM 1518...

-------------------------------
VALIDATOR KEYS STATE SUMMARY:
-------------------------------
In CSM, Validator, and RemoteSigner: 0
         Locally signed:  0 ✅
         Remotely signed: 0 ⚠️
-------------------------------
In CSM and Validator, but not in RemoteSigner: 107
         Locally signed:  107 ✅
         Remotely signed: 0 ✅
-------------------------------
In CSM and RemoteSigner, but not in Validator: 0 ✅
-------------------------------
In Validator and RemoteSigner, but not in CSM: 0 ✅
-------------------------------
Only in CSM: 1 🚨
        Keys: 0xa42b06f9c54ff5dfd88aa97ab84154797cf3ff5b0ec377f7d318e14ad0345ea62d5fd82bdd8da761069f71298b353203
-------------------------------
Only in Validator: 0 ✅
-------------------------------
Only in RemoteSigner: 0 ✅
-------------------------------