NVCC warning supression pragma fix for CUDA >= 11.5

[ptheywood]

CUDA 11.5 deprecated (and CUDA 12.0 removed) diagnostic pragmas such as diag_suppress and diag_default.

Replacement pragmas were prefixed with nv_, i.e. nv_diag_suppress

__NVCC_DIAG_PRAGMA_SUPPORT__ is defined if the prefixed versions are available.

Closes #757

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This is not currently covered by any CI, as tests.yml's cuda-build uses CUDA 10.2. To cover all 3 variants of warnigns would require CUDA < 11.5, CUDA >= 11.5 && CUDA <= 11.8 and CUDA >= 12.0.

When building with -DCLI11_CUDA_TESTS=ON, using CUDA 11.5 to 11.8 inclusive this patch prevents the repeated emission of:

CLI11/include/CLI/TypeTools.hpp(162): warning #20236-D: pragma "diag_suppress" is deprecated, use "nv_diag_suppress" instead

CLI11/include/CLI/TypeTools.hpp(166): warning #20236-D: pragma "diag_default" is deprecated, use "nv_diag_default" instead

When using CUDA 12.0+, it prevents the repeated emission of:

CLI11/include/CLI/TypeTools.hpp(164): warning #2361-D: invalid narrowing conversion from "int" to "unsigned long"
          TT{std::declval<CC>()}
             ^
          detected during:
            instantiation of "CLI::detail::is_direct_constructible<T, C>::test [with T=std::vector<std::string, std::allocator<std::string>>, C=int]" based on template arguments <std::vector<std::string, std::allocator<std::string>>, int> at line 176
            instantiation of class "CLI::detail::is_direct_constructible<T, C> [with T=std::vector<std::string, std::allocator<std::string>>, C=int]" at line 674 of CLI11/include/CLI/Option.hpp
            instantiation of "void CLI::Option::results(T &) const [with T=std::vector<std::string, std::allocator<std::string>>]" at line 703 of CLI11/include/CLI/Option.hpp
            instantiation of "T CLI::Option::as<T>() const [with T=std::vector<std::string, std::allocator<std::string>>]" at line 1017 of CLI11/include/CLI/impl/App_inl.hpp

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (484fa22) 99.45% compared to head (3905ebb) 99.45%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #851   +/-   ##
=======================================
  Coverage   99.45%   99.45%           
=======================================
  Files          18       18           
  Lines        4071     4071           
=======================================
  Hits         4049     4049           
  Misses         22       22           

Impacted Files	Coverage Δ
include/CLI/TypeTools.hpp	100.00% <ø> (ø)

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[henryiii]

Thanks!