For every peer expose through `getpeerinfo` RPC whether or not we selected them as HB peers, and whether or not they selected us as HB peers.

Suggestion by @gmaxwell.
{
    int nOne = 1;
    
    struct sockaddr_storage sockaddr;
    socklen_t len = sizeof(sockaddr);
    if (!addrBind.GetSockAddr((struct sockaddr*)&sockaddr, &len))
    {
        strError = strprintf(Untranslated("Error: Bind address family for %s not supported"), addrBind.ToString());
        LogPrintf("%s\n", strError.original);
        return false;
    }
    SOCKET hListenSocket = CreateSocket(addrBind);
    if (hListenSocket == INVALID_SOCKET)
    {
        strError = strprintf(Untranslated("Error: Couldn't open socket for incoming connections (socket returned error %s)"), NetworkErrorString(WSAGetLastError()));
        LogPrintf("%s\n", strError.original);
        return false;
    }
    
    
    setsockopt(hListenSocket, SOL_SOCKET, SO_REUSEADDR, (sockopt_arg_type)&nOne, sizeof(int));
    
    
    if (addrBind.IsIPv6()) {
#ifdef IPV6_V6ONLY
        setsockopt(hListenSocket, IPPROTO_IPV6, IPV6_V6ONLY, (sockopt_arg_type)&nOne, sizeof(int));