Add a cli command to fetch consolidated session-info about bngblaster HOT 2 CLOSED

{
    "status": "ok",
    "code": 200,
    "session-counters": {
        "sessions": 10,
        "sessions-pppoe": 10,
        "sessions-ipoe": 0,
        "sessions-established": 10,
        "sessions-established-max": 10,
        "sessions-terminated": 0,
        "sessions-flapped": 0,
        "dhcp-sessions": 0,
        "dhcp-sessions-established": 0,
        "dhcp-sessions-established-max": 0,
        "dhcpv6-sessions": 10,
        "dhcpv6-sessions-established": 10,
        "dhcpv6-sessions-established-max": 10,
        "setup-time": 116,
        "setup-rate": 86.20689655172414,
        "setup-rate-min": 86.20689655172414,
        "setup-rate-avg": 86.20689655172414,
        "setup-rate-max": 86.20689655172414,
        "session-traffic-flows": 60,
        "session-traffic-flows-verified": 60,
        "stream-traffic-flows": 10,
        "stream-traffic-flows-verified": 10
    }
}