Transmission Workflow Algorithm

[OwenArnold]

This ticket is blocks : TRAC8616

There is a lack of flexibility in the current quick script (and also now http://trac.mantidproject.org/mantid/ticket/8371) that the users don't like. Essentially the generation and normalisation of transmission runs is hard-coded. The algorithms/scripts both make and use the Transmission runs. It would be better to separate out the building of the Transmission runs from their usage. This would also collapse the existing ReflectometryReductionOne algorithm down by quite a bit.

• Create a new CreateTransmissionCorrection workflow algorithm. Fortunately, I knew that this work would be upon us so most of the Transmission Correction functionality is in a stand-alone method. Things like toLam may make a base algorithm.
• Make ReflectometryReductionOne use CreateTransmissionCorrection
• If the workspace 'FirstTransmissionRun' appears to be in units of wavelength. Assume that it has already been reduced and just use it as the denominator in the normalisation step. Otherwise if it's in TOF, run the TransmissionCorrection procedures. Otherwise, fall over and die (loudly).

[OwenArnold]

This issue was originally trac ticket 8589