Adding wrapping and test for levelset motion registration

Change-Id: I3b31516232ad0d53fda06309e4dfad1d89ae0eba
Merge topic 'SIMPLEITK-426_WrapDeformationFieldFilters' into next

46264113 Adding wrapping and test for levelset motion registration
Changing input image to be of scalar instead of vector

Change-Id: I1da590b8323c4f740c3765ab4d6d7e1ca9a407e4
Merge topic 'SIMPLEITK-345_AddOutputPixelTypeToImageReaders' into next

366577ab Changing input image to be of scalar instead of vector