REFAC: change way requirements are set in filters

Source/Filtering/imstkCleanMesh.cpp

Source/Filtering/imstkExtractEdges.cpp

Source/Filtering/imstkImageDistanceTransform.cpp

Source/Filtering/imstkImageGradient.cpp

Source/Filtering/imstkImageResample.cpp

Source/Filtering/imstkImageReslice.cpp

Source/Filtering/imstkImplicitGeometryToImageData.cpp

Source/Filtering/imstkLocalMarchingCubes.cpp

Source/Filtering/imstkQuadricDecimate.cpp

Source/Filtering/imstkSelectEnclosedPoints.cpp

Source/Filtering/imstkSurfaceMeshCut.cpp

Source/Filtering/imstkSurfaceMeshDistanceTransform.cpp

Source/Filtering/imstkSurfaceMeshFlyingEdges.cpp

Source/Filtering/imstkSurfaceMeshImageMask.cpp

Source/Filtering/imstkSurfaceMeshSmoothen.cpp

Source/Filtering/imstkSurfaceMeshSubdivide.cpp

Source/Filtering/imstkSurfaceMeshTextureProject.cpp

Source/FilteringCore/CMakeLists.txt

Source/FilteringCore/Testing/CMakeLists.txt

Source/FilteringCore/Testing/GeometryAlgorithmTest.cpp