SOL005 NS Lifecycle Management - Implementation of deltas between v3.5.1 and v3.3.1

This merge request refers to the implementation of deltas between v3.5.1 and v3.3.1 of SOL005 NS Lifecycle Management .

@lynchpi @aelken @matsuurat @sayama @kraja @zafar @muhammadh @abbasim

Deadline for review: Friday 29th October 2021 @6pm CEST

Review period elapsed: Approved !

SOL005/NSLifecycleManagement-API/jsons/NsChangeNotification.json

+{{
+	"id":"123",
+	"nsInstanceId":"{nsInstanceId}",
+	"lcmOpOccIdImpactingNsComponent":"{nsLcmOpOccId}",
+	"lcmOpNameImpactingNsComponent" : "VNF_INSTANTIATE",
+	"lcmOpOccStatusImpactingNsComponent" : "START",
+	"nsComponentType" : "VNF",
+	"nsComponentId" : "abcd",
+	"notificationType":"NsChangeNotification",
+	"subscriptionId":"{subscriptionId}",
+	"timeStamp":"",
+	"_links": 
+	{{
+	  "nsInstance": "",
+	  "subscription": ""
+	}}
+}}
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