ENH: Update to ITK version 4.5rc1

Change-Id: I87b917c4d80010d0770394f808f04313824a5e43
Update baseline images for FFT Cross correlation filters

ITKv4.5 now has correct physical spacing and location for these
filters.

Change-Id: Iaf8660e884c8085a88ea18ddac6fbf56c26ae4b8
Moving ITK superbuild to 4.5rc2

Change-Id: I9af35b2aed5863f2834bd62ccb8e4379e8398a5c
Updating Otsu baseline hashes for ITK4.5

Change-Id: I89ec3c17f34f04da45089ca0233df05d31eb313e
Merge topic 'SIMPLEITK-432_UpdateToITK4.5'

b279f76 Updating Otsu baseline hashes for ITK4.5
da190fd Moving ITK superbuild to 4.5rc2
a83c244 Update baseline images for FFT Cross correlation filters
36c420f ENH: Update to ITK version 4.5rc1