Add support for input_literals_file and output_literals_file options.
Add support for input_literals_file and output_literals_file options.

We already had it as part of RunHloModuleOptions, but before it was
only used internally.

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/13108 from openxla:parallel_autotuning 22201078fadf807dbe00b0f4c3db83f9f015999f
