ENH: Registration Tuner GUI.

Console and run button.

Change-Id: Ie81e86aa3173f0e15897076bb8b2b98225228b68
ENH: Reg Tuner: view initial image and tubes.
ENH: Add SubSampleTubeTreeSpatialObjectFilterSerializer.
ENH: Tube Reg: Deserialize the tube sub-sampling.
WIP: Reg Tuner: View blurred image.