Updated RPCs
------------

- The `getpeerinfo` RPC returns two new boolean fields, `bip152_hb_to` and
  `bip152_hb_from`, that respectively indicate whether we selected a peer to be
  in compact blocks high-bandwidth mode or whether a peer selected us as a
  compact blocks high-bandwidth peer. High-bandwidth peers send new block
  announcements via a `cmpctblock` message rather than the usual inv/headers
  announcements. See BIP 152 for more details. (#19776)