Add metrics to Samza (part of #408)

...initions/uc1-beam-samza/resources/beam-samza-service.yaml

...s/uc1-beam-samza/resources/uc1-beam-samza-deployment.yaml

...finitions/uc1-beam-samza/resources/uc1-jmx-configmap.yaml

...ons/uc1-beam-samza/uc1-beam-samza-benchmark-operator.yaml

...initions/uc2-beam-samza/resources/beam-samza-service.yaml

...s/uc2-beam-samza/resources/uc2-beam-samza-deployment.yaml

...finitions/uc2-beam-samza/resources/uc2-jmx-configmap.yaml

...ons/uc2-beam-samza/uc2-beam-samza-benchmark-operator.yaml

...initions/uc3-beam-samza/resources/beam-samza-service.yaml

...s/uc3-beam-samza/resources/uc3-beam-samza-deployment.yaml

...finitions/uc3-beam-samza/resources/uc3-jmx-configmap.yaml

...ons/uc3-beam-samza/uc3-beam-samza-benchmark-operator.yaml

...initions/uc4-beam-samza/resources/beam-samza-service.yaml

...s/uc4-beam-samza/resources/uc4-beam-samza-deployment.yaml

...finitions/uc4-beam-samza/resources/uc4-jmx-configmap.yaml

...ons/uc4-beam-samza/uc4-beam-samza-benchmark-operator.yaml