Add title to "add" & "autoadd" commands

I have a scenario where I parse a config ini file and then generate calls to goss. It would be helpful if there was a way to invoke goss and have the title written to the goss.yaml file in a way similar to this:

```
./goss -g online.yaml a --title 'Service.ini: ldap service address for Server' addr ldap:389
```

Start by locating the CLI entry points for the `add` and `autoadd` commands and how they write `goss.yaml`. Trace how command-line options are parsed and how generated resources are serialized. Done means both commands accept `--title` and persist the supplied title in the generated goss.yaml output.

Written by the indexing model from the issue text.