Refinement of VascularAtlasGeneration experiments.

ENH: CLI documentation in TransferLabelsToRegions.
ENH: Adjusted ExperimentsDriver CLI arguments to reflect args of
     the binaries they are passed to.
ADD: Support in ExperimentsDriver to compute global label maps using
     TransferLabelsToRegions.
Change-Id: I76a02c1484a9be71c95bb999d5add61d346927d7
Merge topic 'rk-GlobalLabelFileSupport'

f5f28aa Refinement of VascularAtlasGeneration experiments.