ENH: move Testing/Core to Testing/Code/ApplicationEngine

Testing/Code/ApplicationEngine/CMakeLists.txt

...e/ApplicationEngine/otbWrapperApplicationRegistryTest.cxx

Testing/Code/ApplicationEngine/otbWrapperApplicationTest.cxx

.../Code/ApplicationEngine/otbWrapperChoiceParameterTest.cxx

Testing/Code/ApplicationEngine/otbWrapperCoreTests.cxx

...g/Code/ApplicationEngine/otbWrapperEmptyParameterTest.cxx

...plicationEngine/otbWrapperInputImageListParameterTest.cxx

...e/ApplicationEngine/otbWrapperInputImageParameterTest.cxx

...licationEngine/otbWrapperInputVectorDataParameterTest.cxx

...de/ApplicationEngine/otbWrapperNumericalParameterTest.cxx

...licationEngine/otbWrapperOutputImageListParameterTest.cxx

.../ApplicationEngine/otbWrapperOutputImageParameterTest.cxx

...ing/Code/ApplicationEngine/otbWrapperParameterKeyTest.cxx

...ng/Code/ApplicationEngine/otbWrapperParameterListTest.cxx

Testing/Code/ApplicationEngine/otbWrapperParameterTest.cxx

...e/ApplicationEngine/otbWrapperStringListParameterTest.cxx

.../Code/ApplicationEngine/otbWrapperStringParameterTest.cxx