Udating the definitions to the 2.4.1 version of SOL003.

  - All interfaces are ready for review
  - WWW-Authenticate was removed from responses except the 401-s and in places where
    it is explicitly mentioned in the description
  - vnfInstanceIds and vnfInstanceNames added to VnfInstanceSubscriptionFilter
  - Inline types of VnfInstance are move to the main definition
  - Description of GET of Individual VNF instance fixed

Change-Id: I06e16a69cc5338e39aef8d41699dea33171ed1d2
Signed-off-by: Gergely Csatari <gergely.csatari@nokia.com>

This changeset corrects two things:
1) Corrects the API version number to 2.3.1 as this was the SOL003 document version used.
2) Adds a disclaimer into the description about the draftness of the API definition.

Change-Id: Ic46cdc1f555b830553a5b5dbfa1510a0ac010722
Signed-off-by: Gergely Csatari <gergely.csatari@nokia.com>

Gergely Csatari authored Nov 29, 2017 and Michele Carignani committed Dec 11, 2017

Change-Id: Ieaacad72426cc2e864220427891578e9add62790
Signed-off-by: Gergely Csatari <gergely.csatari@nokia.com>

Gergely Csatari authored Nov 30, 2017 and Michele Carignani committed Dec 11, 2017

   Todo:
      - Finish review

Change-Id: Ic5eb4f3030f485f39947082c95ac1376d1e81b74

Things to do:
   - Fix the attribite fliters as it was discussed

Change-Id: I008b6f98cdb96f718ceb68c1d32d81ae0101a8d5
Signed-off-by: Gergely Csatari <gergely.csatari@nokia.com>