Share data between chained processes

[WillSoss]

When one process runs as a result of another process completing, match fields from the output of the first process with the config of the second and copy data (possibly only in the case the config does not have a value for a given field). E.g., if the process DataImport runs after MoveFile and MoveFile's output and DataImport's config have fields named "FilePath", then the value in MoveFile's FilePath would be set in DataImport's config. This allows for simple chaining together of processes where some data needs to be shared between the two.