SOL002: VNF Lifecycle mgmt interface consolidated + error codes fixed

src/SOL002/VNFFaultManagement/VNFFaultManagement.yaml

...SOL002/VNFLifecycleManagement/VNFLifecycleManagement.yaml

...ycleManagement/responses/VNFLifecycleManagement_resp.yaml

...ementNotification/VNFLifecycleManagementNotification.yaml

...02/VNFPerformanceManagement/VNFPerformanceManagement.yaml

...entNotification/VNFPerformanceManagementNotification.yaml

src/SOL003/VNFIndicator/VNFIndicator.yaml

...SOL003/VNFLifecycleManagement/VNFLifecycleManagement.yaml

...ementNotification/VNFLifecycleManagementNotification.yaml

src/SOL003/VNFPackageManagement/VNFPackageManagement.yaml

...03/VNFPerformanceManagement/VNFPerformanceManagement.yaml

src/definitions/SOL002SOL003_def.yaml

src/responses/SOL002SOL003_resp.yaml