Changes

Summary

1. modify notifications endpoint for PM API (details)

Commit 44a102e3328c8375574b8325065ee644b5a8f7e0 by mrehanabbasi modify notifications endpoint for PM API
	SOL009/NFVMANOPerformanceManagement-API/environment/variables.txt
	SOL009/NFVMANOPerformanceManagement-API/jsons/ThresholdCrossedNotification.json
	SOL009/NFVMANOPerformanceManagement-API/environment/individualSubscription.txt
	SOL009/NFVMANOPerformanceManagement-API/jsons/PerformanceInformationAvailabilityNotification.json
	SOL009/NFVMANOPerformanceManagement-API/ApiVersion.robot
	SOL009/NFVMANOPerformanceManagement-API/NotificationEndpoint.robot
	SOL009/NFVMANOPerformanceManagement-API/NFVMANOPMKeywords.robot