SOL005 NS Lifecycle Management - Implementation of deltas between v3.3.1 and v2.7.1

This merge request refers to the implementation of deltas between v3.3.1 and v2.7.1 of SOL005 NS Lifecycle Management Interface.

@lynchpi @aelken @matsuurat @carignani @sayama @kraja @zulfiqar @zafar

Deadline for review: Thursday 18th March 2021 @6pm CET

Review period elapsed: Approved !!

SOL005/NSLifecycleManagement-API/environment/variables.txt

@@ -14,7 +14,7 @@ ${ACCEPT_JSON}         application/json
 ${ACCEPT}         application/json
 ${apiRoot}        /
 ${apiName}        nslcm
-${apiMajorVersion}     v1
+${apiMajorVersion}     v2
 ${AUTH_USAGE}     1
 ${WRONG_AUTHORIZATION}    Bearer    XXXXXWRONGXXXXX
 ${nsInstanceId}       6fc3539c-e602-4afa-8e13-962fb5a7d81f