Add error data to error field

[hulto]

Is your feature request related to a problem? Please describe.
Duplicate the error data into the error field of the submit task result.
This is a stop gap before the UI is updated to show the error data.
Once the UI renders error data we can remove it from the output field.

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Describe alternatives you've considered
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Additional context
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[hulto]

Add an error channel to the Task.