Make Error Reporting More Customizable

[iamwyza]

Presently there are 3 options with errors, IgnoreAndContinue, SaveAndContinue, And ThrowException. I'd like to propose a 4th option or at least a variant of the SaveAndContinue option.

The messages produced by SaveAndContinue are perfectly fine for a technical person who has an understanding of the code, but less so for end users. I'd like to still have SaveAndContinue as an option so that I have access to the Row's information and error information, but I'd like to have the column that was the culprit in the ErrorInfo data so that I can construct my own message about the error that is written in an end user acceptable way.

[iamwyza]

Addendum: I would use the ThrowException option and just catch the various exceptions and write out log entries based on that, except that when it throws, it breaks the MoveNext<> on the iterator for engine. Which means the first failure is the last failure.