Start using human-panic

[eopb]

https://github.com/rust-cli/human-panic

[eopb]

We can't use human-panic directly, as it puts an email in its error report. We want to use GitHub issues.

We can, however use human_panic::handle_dump along with our own std::panic::set_hook and message.

[epage]

It mentions "issue or email" but it doesn't seem to put email in the report. It puts authors if set but authors isn't set by this.