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 !!

added MR ready to review label

changed the description

added MR ready to be merged label and removed MR ready to review label

added 56 commits

• d427aab5...9f406719 - 51 commits from branch 3.3.1-dev
• 7e7893aa - api major version update
• a2ce9a6b - new resources added in NS LCM-API
• 9153458c - updated references
• 21c1eab3 - updated jsons, schemas and added minor fixes in query paramters for GET methods
• 12937f7f - updated importing of variables for VNF and NS descriptors

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enabled an automatic merge when the pipeline for 12937f7f succeeds

merged

mentioned in commit c3c3d35d