BUG: Avoid error "include path too long: depth=1024"
BUG: Avoid error "include path too long: depth=1024"

This file was being included multiple times during wrapping and
causing an error.   Added pragma to limit it to a single include.

thewtex/TubeTK,thewtex/TubeTK,thewtex/TubeTK,aylward/ITKTubeTK,aylward/ITKTubeTK,thewtex/TubeTK,aylward/ITKTubeTK,aylward/ITKTubeTK