BinMD should remember input workspace

[OwenArnold]

This issue was originally TRAC 6048

Provide an option on the BinMD algorithm that would allow you to append the input workspace as an original workspace on the output. This would mean that you could run BinMD multiple times in a chain (as is sometimes done as part of the slice viewer).

Note: Look at coordinateTransform in SlicingAlgorithm base class.

[OwenArnold]

@NickDraper (2013-01-28T09:23:18):
Moved at the code freeze for release 2.4

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@NickDraper (2013-04-29T09:49:52):
Moved to r2.6 at the end of r2.5

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@NickDraper (2013-07-26T13:55:00):
Moved to backlog at the code freeze for R2.6

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@NickDraper (2014-02-14T11:04:58):
Bulk move to assigned at the introduction of the triage step