Fix on json schema checks

SOL002/VNFConfiguration-API/Configuration.robot

SOL002/VNFConfiguration-API/environment/variables.txt

SOL002/VNFFaultManagement-API/IndividualAlarm.robot

SOL002/VNFFaultManagement-API/NotificationEndpoint.robot

SOL002/VNFFaultManagement-API/environment/variables.txt

SOL002/VNFIndicator-API/IndividualSubscription.robot

SOL002/VNFIndicator-API/IndividualVNFindicator.robot

SOL002/VNFIndicator-API/Subscriptions.robot

SOL002/VNFIndicator-API/environment/variables.txt

...FIndicatorNotification-API/VnfIndicatorNotification.robot

...02/VNFIndicatorNotification-API/environment/variables.txt

...02/VNFLifecycleManagement-API/IndividualVNFInstance.robot

...leManagement-API/IndividualVnfLcmOperationOccurence.robot

SOL002/VNFLifecycleManagement-API/NotificationEndpoint.robot

SOL002/VNFLifecycleManagement-API/Subscriptions.robot

SOL002/VNFLifecycleManagement-API/environment/variables.txt

SOL002/VNFPerformanceManagement-API/IndividualPmJob.robot

SOL002/VNFPerformanceManagement-API/IndividualReport.robot

...VNFPerformanceManagement-API/IndividualSubscription.robot

...02/VNFPerformanceManagement-API/IndividualThreshold.robot