Add Flink benchmark resources

.../definitions/uc1-flink/flink-configuration-configmap.yaml

...nchmarks/definitions/uc1-flink/jobmanager-deployment.yaml

...hmarks/definitions/uc1-flink/jobmanager-rest-service.yaml

...-benchmarks/definitions/uc1-flink/jobmanager-service.yaml

...ite-benchmarks/definitions/uc1-flink/service-monitor.yaml

...chmarks/definitions/uc1-flink/taskmanager-deployment.yaml

...benchmarks/definitions/uc1-flink/taskmanager-service.yaml

.../definitions/uc2-flink/flink-configuration-configmap.yaml

...nchmarks/definitions/uc2-flink/jobmanager-deployment.yaml

...hmarks/definitions/uc2-flink/jobmanager-rest-service.yaml

...-benchmarks/definitions/uc2-flink/jobmanager-service.yaml

...ite-benchmarks/definitions/uc2-flink/service-monitor.yaml

...chmarks/definitions/uc2-flink/taskmanager-deployment.yaml

...benchmarks/definitions/uc2-flink/taskmanager-service.yaml

.../definitions/uc3-flink/flink-configuration-configmap.yaml

...nchmarks/definitions/uc3-flink/jobmanager-deployment.yaml

...hmarks/definitions/uc3-flink/jobmanager-rest-service.yaml

...-benchmarks/definitions/uc3-flink/jobmanager-service.yaml

...ite-benchmarks/definitions/uc3-flink/service-monitor.yaml

...chmarks/definitions/uc3-flink/taskmanager-deployment.yaml