ENH: Adding GetArrayFromImage in python itk namespace
ENH: Adding GetArrayFromImage in python itk namespace

The function GetArrayFromImage is part of PyBuffer.
When calling PyBuffer, one has to specify the type of
the input image they work with. GetArrayFromImage that
is directly in itk namespace finds the type of the
image that is given and instantiates a PyBuffer object
of the matching type to convert the ITK image into
a numpy array.

Change-Id: Ieac3a7934d58861d6dfa2ade846c8d90ffdfb99e

richardbeare/ITK,hjmjohnson/ITK,BRAINSia/ITK,fbudin69500/ITK,PlutoniumHeart/ITK,Kitware/ITK,stnava/ITK,fbudin69500/ITK,thewtex/ITK,thewtex/ITK,LucasGandel/ITK,spinicist/ITK,blowekamp/ITK,stnava/ITK,vfonov/ITK,zachary-williamson/ITK,hjmjohnson/ITK,fbudin69500/ITK,stnava/ITK,spinicist/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,malaterre/ITK,malaterre/ITK,zachary-williamson/ITK,stnava/ITK,fbudin69500/ITK,richardbeare/ITK,hjmjohnson/ITK,thewtex/ITK,thewtex/ITK,stnava/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,blowekamp/ITK,malaterre/ITK,vfonov/ITK,malaterre/ITK,malaterre/ITK,BRAINSia/ITK,spinicist/ITK,hjmjohnson/ITK,PlutoniumHeart/ITK,zachary-williamson/ITK,stnava/ITK,fbudin69500/ITK,zachary-williamson/ITK,malaterre/ITK,blowekamp/ITK,vfonov/ITK,Kitware/ITK,BRAINSia/ITK,Kitware/ITK,PlutoniumHeart/ITK,spinicist/ITK,blowekamp/ITK,spinicist/ITK,spinicist/ITK,stnava/ITK,spinicist/ITK,spinicist/ITK,thewtex/ITK,malaterre/ITK,fbudin69500/ITK,vfonov/ITK,LucasGandel/ITK,vfonov/ITK,richardbeare/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,InsightSoftwareConsortium/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,richardbeare/ITK,Kitware/ITK,thewtex/ITK,Kitware/ITK,zachary-williamson/ITK,blowekamp/ITK,LucasGandel/ITK,Kitware/ITK,zachary-williamson/ITK,zachary-williamson/ITK,vfonov/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,thewtex/ITK,blowekamp/ITK,Kitware/ITK,BRAINSia/ITK,LucasGandel/ITK,spinicist/ITK,PlutoniumHeart/ITK,hjmjohnson/ITK,malaterre/ITK,zachary-williamson/ITK,hjmjohnson/ITK,LucasGandel/ITK,richardbeare/ITK,fbudin69500/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,stnava/ITK,LucasGandel/ITK,fbudin69500/ITK,blowekamp/ITK,richardbeare/ITK,blowekamp/ITK,PlutoniumHeart/ITK,BRAINSia/ITK,vfonov/ITK,richardbeare/ITK,vfonov/ITK,hjmjohnson/ITK,stnava/ITK,InsightSoftwareConsortium/ITK,zachary-williamson/ITK,malaterre/ITK,PlutoniumHeart/ITK