message: [RPC] Add stakeModifier to getblock verbose output
diff: @@ -161,6 +161,10 @@ UniValue blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool tx
  if (!GetHashProofOfStake(blockindex->pprev, stake.get(), nTxTime, false, hashProofOfStakeRet))
  throw JSONRPCError(RPC_INTERNAL_ERROR, "Cannot get proof of stake hash");
  + std::string stakeModifier = (Params().IsStakeModifierV2(blockindex->nHeight) ?
  + blockindex->nStakeModifierV2.GetHex() :
  + strprintf("%016x", blockindex->nStakeModifier));
  + result.push_back(Pair("stakeModifier", stakeModifier));
  result.push_back(Pair("hashProofOfStake", hashProofOfStakeRet.GetHex()));
  }
  @@ -517,6 +521,7 @@ UniValue getblock(const UniValue& params, bool fHelp)
  " \"5000\" : n, (numeric) supply of 5000 zPIV denomination\n"
  " \"total\" : n, (numeric) The total supply of all zPIV denominations\n"
  " },\n"
  + " \"stakeModifier\" : \"xxx\", (string) Proof of Stake modifier\n"
  " \"hashProofOfStake\" : \"hash\", (string) Proof of Stake hash\n"
  " }\n"
  "}\n"
  