Place export set in build directory

[codecircuit]

If you put these lines:

# If you want to use the library without installing it, you'll need to
# copy the file we generate here, cuda-kat-config.cmake, into the
# build directory, and set `cuda-kat_DIR` to that build directory
# in your own CMake project.
export(
	EXPORT cuda-kat_export
	NAMESPACE "cuda-kat::"
	FILE "${PROJECT_BINARY_DIR}/cuda-kat-config.cmake"
)

In the CMakeLists.txt here it is possible to use this project without installing it. This feature is also available for the cuda-api-wrappers.

[eyalroz]

This makes me wonder... if we generate the file in ${CMAKE_CURRENT_BINARY_DIR} - why do we even need to copy it anywhere?