message: Add wtxids of confirmed transactions to bloom filter
  This is in preparation for wtxid-based invs (we need to be able to tell whether
  we AlreadyHave() a transaction based on either txid or wtxid).
  This also double the size of the bloom filter, which is overkill, but still
  uses a manageable amount of memory.
diff: @@ -1117,14 +1117,15 @@ PeerLogicValidation::PeerLogicValidation(CConnman* connmanIn, BanMan* banman, CS
  recentRejects.reset(new CRollingBloomFilter(120000, 0.000001));
  // Blocks don't typically have more than 4000 transactions, so this should
  - // be at least six blocks (~1 hr) worth of transactions that we can store.
  + // be at least six blocks (~1 hr) worth of transactions that we can store,
  + // inserting both a txid and wtxid for every observed transaction.
  // If the number of transactions appearing in a block goes up, or if we are
  // seeing getdata requests more than an hour after initial announcement, we
  // can increase this number.
  // The false positive rate of 1/1M should come out to less than 1
  // transaction per day that would be inadvertently ignored (which is the
  // same probability that we have in the reject filter).
  - g_recent_confirmed_transactions.reset(new CRollingBloomFilter(24000, 0.000001));
  + g_recent_confirmed_transactions.reset(new CRollingBloomFilter(48000, 0.000001));
  const Consensus::Params& consensusParams = Params().GetConsensus();
  // Stale tip checking and peer eviction are on two different timers, but we
  @@ -1176,6 +1177,9 @@ void PeerLogicValidation::BlockConnected(const std::shared_ptr<const CBlock>& pb
  LOCK(g_cs_recent_confirmed_transactions);
  for (const auto& ptx : pblock->vtx) {
  g_recent_confirmed_transactions->insert(ptx->GetHash());
  + if (ptx->GetHash() != ptx->GetWitnessHash()) {
  + g_recent_confirmed_transactions->insert(ptx->GetWitnessHash());
  + }
  }
  }
  }
  