updated api-versions endpoint openapi: put common structure of path and referenced in other openapis

Updated API version resource, and Version HTTP Header - SOL002 #1,5,6,17,19,20,21,22,43,45,53,55,58,61,66,68

SOL002_32: VnfInfoModificationsRequest and VnfcInfoModifications added to SOL002SOL003VNFLifecycleManagement_def.yaml, ref updated in VNFLifecycleManagement.yaml

MonitoringParameter updated in SOL002SOL003VNFLifecycleManagement_def.yaml, MonitoringParameter removed from VNFLifecycleManagement_def.yaml and refs updated

VnfcResourceInfo removed from VNFLifecycleManagement_def.yaml, now ref to VnfcResourceInfo in SOL002SOL003VNFLifecycleManagement_def.yaml

AffectedVirtualLink updated in VNFLifecycleManagement_def.yaml and SOL002SOL003VNFLifecycleManagement_def.yaml

VnfcResourceInfo updated in VNFLifecycleManagement_def.yaml and SOL002SOL003VNFLifecycleManagement_def.yaml

This pr is the correction of bug 85.

The 202 response of the POST methods in the following resources:
- /vnf_instances/{vnfInstanceId}/scale
- /vnf_instances/{vnfInstanceId}/scale_to_level
- /vnf_instances/{vnfInstanceId}/change_flavour
- /vnf_instances/{vnfInstanceId}/terminate
- /vnf_instances/{vnfInstanceId}/heal
- /vnf_instances/{vnfInstanceId}/operate
- /vnf_instances/{vnfInstanceId}/change_ext_conn

contained a VNF instance object in their body what
is not needed.

Also the alarmId parameter added to the POST of /alarms/{alarmId}/escalate

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

Gergely Csatari authored May 21, 2018 and Michele Carignani committed Jun 19, 2018

 - VnfLcmOperationOccurrenceNotification.changedInfo should be VnfInfoModifications, not VnfInfoModificationRequest
 - vnfInstanceName shouldn't be part of VnfIdentifierCreationNotification

Change-Id: Ie4d2f1785b6997ed408dbcfeed109e2dcae61879
Signed-off-by: Gergely Csatari <gergely.csatari@nokia.com>