ENH: Fix several compilation errors in the TimeIntegrators

ContactHandling/CMakeLists.txt

ContactHandling/UnitTests/CMakeLists.txt

Core/SceneObject.h

Core/StaticSceneObject.cpp

Core/StaticSceneObject.h

Examples/AVMNidus/CMakeLists.txt

Examples/FEMSimulator/CMakeLists.txt

Examples/LaparoscopicCamera/CMakeLists.txt

Examples/Shaders/CMakeLists.txt

Simulators/CMakeLists.txt

Simulators/DeformableSceneObject.h

Simulators/UnitTests/CMakeLists.txt

Simulators/UnitTests/VegaFEMDeformableSceneObjectSpec.cpp

Simulators/VegaFEMDeformableSceneObject.cpp

Simulators/VegaFEMDeformableSceneObject.h

Simulators/VegaFemSceneObject.cpp

Simulators/VegaFemSceneObject.h

Solvers/InexactNewton.cpp

Solvers/InexactNewton.h

Solvers/NonLinearSolver.h