Create endpoints: - GET /tmf-api/metrics/registeredIndividuals - Exp. Resp: {registeredIndividuals: 23} - GET /tmf-api/metrics/publishedServiceSpecifications - Exp. Resp: {publishedServiceSpecifications: 13} - TIP: get all ServiceCategories and count the allocated serviceCandidates - GET /tmf-api/metrics/registeredResourceSpecifications - Exp. Resp: {registeredResourceSpecifications: 15}