Fix flink distributed #520
Merged
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This PR fixes the current implementation of the
wayang-flinkplatform.In the current state of Apache Wayang's main branch, the distributed execution of Flink didn't work properly.
Partial executions were never actually executed and just return nothing instantly, only executions where all operators were on Flink were executed.
These issues have been addressed in this PR and the proper tools for serialization of data and operators to send them over the network to remote clusters was introduced.