feat(prover-nitro-enclave): initial nitro prover impl

[35359595]

Implement #221

This PR implements Nitro based prover guest using vsock crate and raiko-host feature-gated extension intended to reside on parent host and talking to enclave through VSocket.

Enclave ID and vsocket port are constant values for consistensy.

On-chain proof validation will be implemented in separate PR.

Example output:

• proving block 2020
  {"data":{"output":null,"proof":"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
  -------snip---------
  33322c3136365d","quote":null},"status":"ok"}