Patches for ITK 4.13.3

Hi folks,

For the next, likely final on the 4.X series, patch (bugfix) release, ITK 4.13.3, the currently staged commits on the Git release-4.13 branch are:

Bradley Lowekamp (7):
      BUG: Patch missing const qualifier to GDCM dircos_comp comparison
      BUG: Address bug with small size in output of SliceImageFilter
      BUG: Update CI scripts from current ITK master
      ENH: Update GDCM to latest on the release-2.8 branch
      BUG: update CircleCI configuration with selections from master
      BUG: Don't use InsertElement which modifies MTime
      BUG: Address buffer overflow with deprecated GDCM1 interface

Dženan Zukić (4):
      ENH: use double-conversion's CMake targets
      COMP: a fix for non-system double-conversion build
      ENH: back-porting #1165 to support Visual Studio 2019
      COMP: update download location for pre-built ICU for Visual Studio

GDCM Upstream (1):
      GDCM 2019-11-04 (7e3be76f)

Jerome Schmid (1):
      COMP: VtkGlue module-Provide support for VTK new cmake targets

Marco Nolden (1):
      COMP: added vcl compiler detection for GCC 10.x

Matthew McCormick (2):
      COMP: Prevent duplicate wrapping ouput file specification
      COMP: Add VXL support for GCC 9

Are there other patches that are missing? Patches should be critical bugfixes, improved support for compilers, and documentation fixes.