Run only failed examples (instead of --only-failures and --next-failure)

[ko1nksm]

rspec has --only-failures and --next-failure to filter to execute the examples that failed the last time.

This feature requires to prepare config.example_status_persistence_file_path. IMO, I do not think that it is easy to use.

I think it would be convenient if there is an interactive mode (list failed examples, re-run failed examples, run specifled example, etc)

[ko1nksm]

I will implement --quick option instead of interactive mode that hard to implement.

The --quick option aims to be easier-to-use than --only-failures and --next-failure.