Changes

Summary

1. remove subscriptions and individual subscription resources from PM API (details)

Commit dcb71faf47775d1d2751352ae8bdcf7dce886d0b by mrehanabbasi remove subscriptions and individual subscription resources from PM API
	SOL009/NFVMANOPerformanceManagement-API/schemas/PmSubscriptions.schema.json
	SOL009/NFVMANOPerformanceManagement-API/jsons/subscriptions.json
	SOL009/NFVMANOPerformanceManagement-API/Subscriptions.robot
	SOL009/NFVMANOPerformanceManagement-API/schemas/PmSubscription.schema.json
	indexes/sol_009_index.csv
	SOL009/NFVMANOPerformanceManagement-API/IndividualSubscription.robot
	SOL009/NFVMANOPerformanceManagement-API/environment/subscriptions.txt