message: Move RandBool() into random.h/cpp
diff: @@ -33,15 +33,6 @@ double justifyLieRate = 0;
  double commitOmitRate = 0;
  double commitLieRate = 0;
  -static bool RandBool(double rate)
  -{
  - const uint64_t v = 100000000;
  - uint64_t r = GetRand(v + 1);
  - if (r <= v * rate)
  - return true;
  - return false;
  -}
  -
  CDKGLogger::CDKGLogger(CDKGSession& _quorumDkg, const std::string& _func) :
  CDKGLogger(_quorumDkg.params.type, _quorumDkg.quorumHash, _quorumDkg.height, _quorumDkg.AreWeMember(), _func)
  {
  @@ -142,7 +133,7 @@ void CDKGSession::SendContributions()
  logger.Printf("sending contributions\n");
  - if (RandBool(contributionOmitRate)) {
  + if (GetRandBool(contributionOmitRate)) {
  logger.Printf("omitting\n");
  return;
  }
  @@ -161,7 +152,7 @@ void CDKGSession::SendContributions()
  auto& m = members[i];
  CBLSSecretKey skContrib = skContributions[i];
  - if (RandBool(contributionLieRate)) {
  + if (GetRandBool(contributionLieRate)) {
  logger.Printf("lying for %s\n", m->dmn->proTxHash.ToString());
  skContrib.MakeNewKey();
  }
  @@ -310,7 +301,7 @@ void CDKGSession::ReceiveMessage(const uint256& hash, const CDKGContribution& qc
  if (!qc.contributions->Decrypt(myIdx, *activeMasternodeInfo.blsKeyOperator, skContribution, PROTOCOL_VERSION)) {
  logger.Printf("contribution from %s could not be decrypted\n", member->dmn->proTxHash.ToString());
  complain = true;
  - } else if (RandBool(complainLieRate)) {
  + } else if (GetRandBool(complainLieRate)) {
  logger.Printf("lying/complaining for %s\n", member->dmn->proTxHash.ToString());
  complain = true;
  }
  @@ -651,7 +642,7 @@ void CDKGSession::SendJustification(const std::set<uint256>& forMembers)
  CBLSSecretKey skContribution = skContributions[i];
  - if (RandBool(justifyLieRate)) {
  + if (GetRandBool(justifyLieRate)) {
  logger.Printf("lying for %s\n", m->dmn->proTxHash.ToString());
  skContribution.MakeNewKey();
  }
  @@ -659,7 +650,7 @@ void CDKGSession::SendJustification(const std::set<uint256>& forMembers)
  qj.contributions.emplace_back(i, skContribution);
  }
  - if (RandBool(justifyOmitRate)) {
  + if (GetRandBool(justifyOmitRate)) {
  logger.Printf("omitting\n");
  return;
  }
  @@ -917,7 +908,7 @@ void CDKGSession::SendCommitment()
  return;
  }
  - if (RandBool(commitOmitRate)) {
  + if (GetRandBool(commitOmitRate)) {
  logger.Printf("omitting\n");
  return;
  }
  @@ -955,7 +946,7 @@ void CDKGSession::SendCommitment()
  qc.quorumVvecHash = ::SerializeHash(*vvec);
  int lieType = -1;
  - if (RandBool(commitLieRate)) {
  + if (GetRandBool(commitLieRate)) {
  lieType = GetRandInt(5);
  logger.Printf("lying on commitment. lieType=%d\n", lieType);
  }
  