BUG: Fix issues with the BinaryStatisticsOpeningImageFilter test

The test missed to set one of the two required inputs (the feature image).
Besided it was not comparing to any baseline. Now a baseline image has
been added (got from the execution of the test), and a comparison to the
baseline is performed. Successful execution under Windows 7, Visual Studio
10.

An existing test for the itk::BinaryStatisticsOpeningImageFilter has been
included in the /Modules/Filtering/LabelMap/test CMakeLists. Input
arguments have also been provided. Input images have been taken from the
legacy /Testing/Data/Input repo, and copied to a local /test/Input folder.
No baseline comparison is performed yet.

Change-Id: If1d191450da23ff4d3a4f8e5ab0412353a180708
COMP: Update gccxml

Fixes the following warnings in WrapITK:
Policy CMP0048 is not set
Policy CMP0026 is not set
Policy CMP0046 is not set

See:
https://github.com/gccxml/gccxml/commit/a452067b91b890f7027f04beeea7155c1ad6b850
https://github.com/gccxml/gccxml/commit/3eb4078017ae4b95d6f69647068718a5ca890396
https://github.com/gccxml/gccxml/commit/48b49a6954310efc5a79dd1fbc55128fa9b38fb1

Change-Id: Id5e53208110298317129be52815422d752b22703
ENH: Use DynamicCastInDebugMod for name input macros

When writing a filter it is possible to mix up inputs and
types. Similar to ImageToImageFilter::GetInput etc., a dynamic_cast
with conversion check should be used in debug mode.

Additionally, casting is not needed to print.

Change-Id: Iacdfcb881670688da79662437cbc57217e5f4fde
Merge topic 'UseDynamicCastInDebugModeForNamedInputMacros'

2a47af6f ENH: Use DynamicCastInDebugMod for name input macros
ENH: Uninitialized scalar field

Coverity defect:
Non-static class member is not initialized in this constructor nor in
any functions that it calls.

Many changes were required to remove these defects. There may be some I
missed, bit we'll see once this patch is commitred and coverity makes
another [pass.

Change-Id: I574d4425ed2d123c005126705f3c1fac7312ced7
Merge topic 'Coverity_UninitializedScalarField'

75bf352f ENH: Uninitialized scalar field
Merge topic 'BumpGCCXML'

621904fa COMP: Update gccxml
Merge topic 'BinaryShapeOpeningImageFilterCodeCoverage'

7cdd4596 BUG: Fix issues with the BinaryStatisticsOpeningImageFilter test