message: Prefer vcpkg to cmake on Windows
diff: @@ -696,7 +696,7 @@ impl Library {
  || env::var_os("OPENCV_CMAKE_NAME").is_some()
  || env::var_os("CMAKE_PREFIX_PATH").is_some();
  || env::var_os("OPENCV_CMAKE_BIN").is_some();
  - let explicit_vcpkg = env::var_os("VCPKG_ROOT").is_some();
  + let explicit_vcpkg = env::var_os("VCPKG_ROOT").is_some() || cfg!(target_os = "windows");
  let disabled_probes = env::var("OPENCV_DISABLE_PROBES");
  let disabled_probes = disabled_probes.as_ref()
  