The old type configuration
(`platypush.plugins.calendar.name.CalendarNamePlugin`) is a bit clunky.
Instead, since the type will always be a plugin, we should encourage
the use of `calendar.name` directly to identify the type.
The new configuration:
- Enables `backend.http` by default
- Removes the extra `config.auto.yaml` dependency
- Includes many more examples, lots of updates for existing examples,
and extensive comments.