@SuppressWarnings("unused")
    default Path writeFile(String path, InputStream fileContentsInputStream) {
        return writeFile(Paths.get(path), fileContentsInputStream);
    }
Adds a file to the result using the contents of an {@link InputStream}.

<p>This method will write the contents of an input stream to a file.

@param path Relative path to the file to create.
@param fileContentsInputStream InputStream to consume and write to the file.
@return Returns the resolved path.
smithy-build/src/main/java/software/amazon/smithy/build/FileManifest.java