ospfd: Fix "show ip ospf neighbor swp1 detail json" output

1. When OSPF unnumbered neighbor doesn't exist in any VRF,
   OSPFD prints a bunch of empty JSON objects. Fixed it
   by adding an outer JSON object with VRF information in it
2. Added "vrf" option to this command so that per VRF
   unnumbered OSPF neighbor information can be retrieved

JSON output:
    nl1# show ip ospf neighbor swp1 detail json
        {
          "default":{
          },
          "vrf1012":{
          },
          "vrf1013":{
          },
          "vrf1014":{
          }
        }

    nl1# show ip ospf vrf vrf1012 neighbor swp4.2 detail json
        {
          "9.9.12.10":[
            {
              "ifaceAddress":"200.254.2.46",
              "areaId":"0.0.0.0",
              "ifaceName":"swp4.2",
              "localIfaceAddress":"200.254.2.45",
              "nbrPriority":1,
              "nbrState":"Full",
              "role":"DR",
              "stateChangeCounter":6,
              "lastPrgrsvChangeMsec":1462758,
              "routerDesignatedId":"200.254.2.46",
              "routerDesignatedBackupId":"200.254.2.45",
              "optionsCounter":2,
              "optionsList":"*|-|-|-|-|-|E|-",
              "routerDeadIntervalTimerDueMsec":37140,
              "databaseSummaryListCounter":0,
              "linkStateRequestListCounter":0,
              "linkStateRetransmissionListCounter":0,
              "threadInactivityTimer":"on",
              "threadLinkStateRequestRetransmission":"on",
              "threadLinkStateUpdateRetransmission":"on"
            }
          ]
        }
        nl1#

Signed-off-by: Pooja Jagadeesh Doijode <pdoijode@nvidia.com>

0 files changed, 0 insertions, 0 deletions