[Node Mgr] Node Manager Interface for NCM Registration (#598)

> ```
> Node Manager Interface for NCM Registration
> ```
> 
> **IMPORTANT NOTE**
> 
> * This is yet another breaking change. This commit introduces named
>   versions of NodeInfo cache in NMM, DPM and NCM. Previously, the three
>   were physically the same cache.
> 
> If any code/test assumes the existence of certain node in these caches
> before this change, they will not find those entries since this change.
> creates new caches.
> 
> * This commit also introduces an implicit assumption that bulk adding of
>   nodes can only be done to one NCM at a time. Even if each nodeinfo has a
>   distinct NCM id, NMM will pick the NCM Id from the first nodeinfo and
>   send the whole batch to that NCM (issue #601 is tracking this)
> * Node creation via file upload was meant to be an admin task and was
>   not designed to dispatch those nodes to DPM and NCM. This commit
>   does not change this old behavior (issue #600 is tracking this)
> 
> Regular change notes:
> 
> * Node creation will continue to work if nodeinfo has no ncmid to be backward
>   compatible. Delete, update file upload, bulk add all are 100% backward
>   compatible if ndmid is missing.
> * If ncmid is present, it must resolve to a registered NCM or an error will
>   be raised.
> * Update integration test script (scripts/test/nmm-ncm-test.sh) with NCM
> * id/uri. UPDATE is also validated. Added node creation with no NCMID.
> * Fix update/delete getting called through wrong methods in DPM/NCM rest
>   client code. Using rest template exchange method with correct HTTP
>   headers is required in those sites.

This is a great change note. Let us keep up the good work 👍

lib/pom.xml

@@ -170,4 +170,4 @@ Copyright(c) 2020 Futurewei Cloud
         </plugins>
     </build>
 
-</project>
+</project>

scripts/json/nodes-upload.json

@@ -6,39 +6,44 @@
          "mac_address": "D1:A0:C9:34:C8:29",
          "node_name": "upl009030",
          "server_port": 50001,
-         "veth": "eth0"
+         "veth": "eth0",
+         "ncm_id" : "test_ncm_001"
       },
       {
          "local_ip": "30.213.43.11",
          "node_id": "e209465c-5ed6-400e-806d-fbefd12f94a9",
          "mac_address": "D2:A0:C9:34:C8:29",
          "node_name": "upl009031",
          "server_port": 50001,
-         "veth": "eth0"
+         "veth": "eth0",
+         "ncm_id" : "test_ncm_001"
       },
       {
          "local_ip": "30.213.43.13",
          "node_id": "e309465c-5ed6-400e-806d-fbefd12f94a9",
          "mac_address": "D3:A0:C9:34:C8:29",
          "node_name": "upl009032",
          "server_port": 50001,
-         "veth": "eth0"
+         "veth": "eth0",
+         "ncm_id" : "test_ncm_001"
       },
       {
          "local_ip": "30.213.43.14",
          "node_id": "e409465c-5ed6-400e-806d-fbefd12f94a9",
          "mac_address": "D4:A0:C9:34:C8:29",
          "node_name": "upl009033",
          "server_port": 50001,
-         "veth": "eth0"
+         "veth": "eth0",
+         "ncm_id" : "test_ncm_001"
       },
       {
          "local_ip": "30.213.43.15",
          "node_id": "e509465c-5ed6-400e-806d-fbefd12f94a9",
          "mac_address": "D5:A0:C9:34:C8:29",
          "node_name": "upl009034",
          "server_port": 50001,
-         "veth": "eth0"
+         "veth": "eth0",
+         "ncm_id" : "test_ncm_001"
       }
    ]
 }