Improvements to depth alignment

applications/gui/src/camera.cpp

applications/gui/src/src_window.cpp

components/common/cpp/include/ftl/cuda_half.hpp

components/common/cpp/include/ftl/cuda_texture.hpp

components/common/cpp/include/ftl/traits.hpp

components/operators/include/ftl/operators/mvmls.hpp

components/operators/src/fusion/correspondence.cu

components/operators/src/fusion/correspondence_common.hpp

components/operators/src/fusion/correspondence_depth.cu

components/operators/src/fusion/correspondence_util.cu

components/operators/src/fusion/mvmls.cpp

components/operators/src/fusion/mvmls_cuda.hpp