message: test: add ALL_NETWORKS to test utilities
diff: #define BITCOIN_TEST_UTIL_NET_H
  #include <compat.h>
  +#include <netaddress.h>
  #include <net.h>
  #include <util/sock.h>
  +#include <array>
  #include <cassert>
  #include <cstring>
  #include <string>
  @@ -67,6 +69,16 @@ constexpr ConnectionType ALL_CONNECTION_TYPES[]{
  ConnectionType::ADDR_FETCH,
  };
  +constexpr auto ALL_NETWORKS = std::array{
  + Network::NET_UNROUTABLE,
  + Network::NET_IPV4,
  + Network::NET_IPV6,
  + Network::NET_ONION,
  + Network::NET_I2P,
  + Network::NET_CJDNS,
  + Network::NET_INTERNAL,
  +};
  +
  /**
  * A mocked Sock alternative that returns a statically contained data upon read and succeeds
  * and ignores all writes. The data to be returned is given to the constructor and when it is
  