Send version info with result / heartbeat

[dmcomm]

I can't see what's happening on the server so can you check that?

As part of this, refactored the version info that shows on the screen or is a result of "i" (wifi or serial).

Dropping "variant" from reported info - picow/nina bundles are going to be identical in the upcoming release, and dropping nina after.

Adding "has_display" to reported info for future server decisions.

[mechawrench]

I'll be able to watch the server while testing this, will report back

[dmcomm]

Consider adding whether we have a screen.