Help: Document when CUDA_STANDARD and OBJCXX_STANDARD values were added
Note that some CUDA C++ language standard levels were added before any
compilers actually supported them. In such cases, the value of
CUDA_STANDARD
gracefully degrades to the highest supported by the
compiler (unless CUDA_STANDARD_REQUIRED
is enabled). Therefore we can
document support for each value based on when CMake learned of it.
Backport: release
Edited by Brad King