run UC as python implementation

Implements #68 (closed), #77 (closed)

Integrates !19 (closed)

execution/uc-application/base/aggregation-deployment.yaml

@@ -23,7 +23,7 @@ spec:
         - name: KAFKA_BOOTSTRAP_SERVERS
           value: "my-confluent-cp-kafka:9092"
         - name: COMMIT_INTERVAL_MS
-          value: 100
+          value: "100"
         - name: JAVA_OPTS
           value: "-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=5555"
         resources: