Add support for Error object (#135)

[SidStraw]

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Add support for Error object to fixes #135

[etienne-martin]

Looks good to me

[oceanwap]

Hey guys, Any idea why this hasn't been merged?

@SidStraw This change is helpful but it doesnt retain the trace of error, it would be amazing to retain the trace of error after deserialization.

[SidStraw]

Thank you, this suggestion was very helpful. This is indeed the part that I did not handle. I will add this logic.

[redonkulus]

@SidStraw if this is still needed, it will need to rebased since the code has changed since you originally opened this.

@okuryu thoughts on adding this in?