Interface related criteria can be handled in the MeetsCriteria in the
BaseComponent as well as the iterator over criteria, other (developer-user) specific Criteria are deligated to
MeetsCriterum per iteration.

All example components have the propertie ClassName as selection
criterium.

Moved ComponentSelector classes to ComponentInterface, moved Examples to
ComponentExamples. Made all Examples adhere to ITK factory functionality.

- Changed to namespace selx
- Combined componentbase classes and based it on itkLightObject
- Initial combination of example components
- Made templated ComponentFactory to replace all specific factories

Merge branch 'ELASTIX-43-Show-header-files-in-Visual-Studio' into ELASTIX-44-Unite-Interface-framework-with-Factory-framework

project

'ELASTIX-12-implement-componentdatabase' into develop

Conflicts:
	Modules/Core/elxModuleCore.cmake
	Testing/Unit/CMakeLists.txt

Conflicts:
	CMakeLists.txt
	Modules/Core/elxModuleCore.cmake
	SuperBuild/CMakeLists.txt
	Testing/Unit/CMakeLists.txt

Merge branch 'ELASTIX-24-Component-Interface-Handshake' of https://github.com/kaspermarstal/SuperElastix into ELASTIX-24-Component-Interface-Handshake

Conflicts:
	Modules/Core/ComponentInterface/GDOptimizer4thPartyComponent.cxx
	Modules/Core/ComponentInterface/Interfaces.hxx

The new Travis infrastructure supports a new version of CMake which is
required by some of SuperBuild dependencies.

Model the GoogleTest build after SimpleITK. This fixes previous build
errors.

casts for the handshape are put in the acceptor generalized.