ENH: Accomodate Philips 4D Multiframe DICOM files

Change-Id: Ieaa37f9dbf8daea63acb7b1d5a555fa566a90357
COMP: Do not try to include float.h for MinGW.

float.h is needed for FloatingPointExceptions.  ITK can fail
to compile with MinGW, because there are two float.h files on Windows
in this case.  If it happens that the MinGW one is found first,
a failure will occur because a

  #include_next <float.h>

is not in the GCC version.  While this problem has been reported by others to
upstream GCC many times in the past, it has not been addressed.  To get around
this, we avoid trying to include float.h with MinGW.

Change-Id: I2e8022a5b4c67a6fbef930b5ceda403bcb31c97f
Merge topic 'MinGWFloat.h'

399018e COMP: Do not try to include float.h for MinGW.
Merge topic 'DICOM4D'

4207729 ENH: Accomodate Philips 4D Multiframe DICOM files