Add commands for remaining Scrapyd API endpoints

[jpmckinney]

We already have listprojects, listspiders, schedule, addversion.

https://scrapyd.readthedocs.io/en/stable/api.html

Idempotent:

• [ ] daemonstatus
• [ ] listversions
• [ ] listjobs

The commands would omit the list prefix, like existing commands.

Stateful:

• [ ] delproject
• [ ] delversion
• [ ] cancel