Add script for testing mining with Curio

# Issue Summary

Curio is a replacement for `lotus-miner`. Like `lotus-miner`, it is designed to use `lotus` to interact with the Filecoin blockchain. Forest works with Curio but all testing is currently done by hand. Since testing takes several hours, we cannot do it in CI. However, we should have a script that runs as many tests as possible (even if it takes several hours to run).

- [ ] Automatically add sectors to be mined.
- [ ] Verify that Curio behaves correctly with Forest as the interface.
- [ ] Document how to run the test script and what to expect.