COMP: Fix compilation errors with ITK_USE_64BITS_IDS

Enabling this cmake configuration flag for ITK changes the size types
used in ITK from ulong to ulong long on windows. This patch addresses
compilation errors which resulted from this change. The
itk::SizeValueType is preferred type, or a referenced typedef from the
related ITK class being used.

For reference, see :
  http://slicer-devel.65872.n3.nabble.com/Building-Slicer-with-ITK-USE-64BIT-IDS-tt4032499.html
  http://slicer-devel.65872.n3.nabble.com/BigTIFF-tt4032353.html

From: Bradley Lowekamp <blowekamp@mail.nih.gov>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23714 3bd1e089-480b-0410-8dfb-8563597acbee