function copyFiles(destinationPath, templatesPath, modulePackageName) {
  shell.cp('-R', `${templatesPath}/${modulePackageName}/*`, destinationPath);
}
Copies the templates to the destination directory.

@param destinationPath - The destination path for a new module.
@param templatesPath - The path to the templates for a new module.
@param modulePackageName - The application package ([client|server])