Symlinks the extracted libtensorflow library to the destination path. If the
symlink fails, a copy is made.
async function symlinkDepsLib() {
  if (destLibPath === undefined) {
    throw new Error('Destination path not supplied!');
  }
  try {
    await symlink(depsLibTensorFlowPath, destLibPath);
    if (os.platform() !== 'win32') {
      await symlink(depsLibTensorFlowFrameworkPath, destFrameworkLibPath);
    }
  } catch (e) {
    console.error(
        `  * Symlink of ${destLibPath} failed, creating a copy on disk.`);
    await copy(depsLibTensorFlowPath, destLibPath);
    if (os.platform() !== 'win32') {
      await copy(depsLibTensorFlowFrameworkPath, destFrameworkLibPath);
    }
  }
}