Link to Bcrypt on Windows with Rust >= 1.57

[jschwe]

rust-lang/rust#84096 introduced a dependency on BCryptGenRandom. This does not seem to play a role when just using cargo build, but when using corrosion, Bcrypt needs to be linked on Windows. See also rust-lang/rust#91974.

The following change fixes the build of rust2cpp and features for me (checked on Windows 11, msvc).
test/rust2cpp/CMakeLists.txt

-target_link_libraries(cpp-exe PUBLIC rust-lib)
+target_link_libraries(cpp-exe PUBLIC rust-lib Bcrypt)

test/features/CMakeLists.txt

-target_link_libraries(features-cpp-exe PUBLIC rust-feature-lib)
+target_link_libraries(features-cpp-exe PUBLIC rust-feature-lib Bcrypt)

But since this is something that will generally be needed as soon as someone uses whatever std function uses Bcrypt, Corrosion should probably add the Bcrypt dependency automatically on Windows (at least for Rust >=1.57).

Fixing this should also fix the CI failures on Windows for the stable and nightly toolchains.

[jschwe]

Closed by #120