adapt ansible plugin to nornir 3.0.0

[dbarrosop]

Relates to #486 and #504

Adapt plugin to nornir 3.0.0.

For reference look at https://github.com/nornir-automation/nornir_napalm.

Don't forget to add details to the plugin repository. You can do so by adding it here

If you have any questions don't hesitate to ask.

[dbarrosop]

@carlmontanari

[carlmontanari]

First draft: https://github.com/carlmontanari/nornir_ansible

Not sure if we had planned to tweak how any of the inventory things work but a quick check through the 3.0.0 branch didn't look like it (v possible I missed something obvious though!). This is working with 2.4.0 and should work with 3.x+ I suspect. Just rolled w/ requirements.txt for now to get rolling quickly since I'm a poetry noob, but can convert over if y'all care. Other than no poetry, tried to copy the napalm plugin so it should at least be a close approximation to what we want!

Lemme know if there is anything wonky with it and I can get it tuned up!

[dbarrosop]

Awesome! I will probably want to use for inventory plugins the same pattern I introduced to register connection plugins but that should require very small changes to what you already did. I will keep you posted.

[carlmontanari]

Better draft ready here :)

Registration is working and such now. Pinned to 3.0.0.a2 for now. No docs still... one thing at a time I suppose :) but its working nicely w/ 3.0.0a2 in my testing so far!