As of https://github.com/bazelbuild/bazel/pull/14369, shared libraries
produced with cc_binary on macOS with the auto-configured toolchain use
the correct file extension for dynamic libraries
(.dylib rather than .so). This requires adapting a test.
* Fix test target on macOS with Bazel@HEAD
supports_dynamic_linker feature was removed from cc toolchain for macOS,
cc_binary should be used to build shared library.
Context: bazelbuild/bazel#4341 (comment)
* Fix test on Windows
* Added `data` attribute for files needed by the rule at runtime.
* Updated documentation
* Added examples
* Enable runfiles on windows
* Also gather transitive runfiles
