Adjust Device schema to allow for non-network devices

[ryanmerolle]

It would not take much to extend the current schema to include non-network devices.

I'd be happy to take this on. We have 2 approaches I can see:

• Adjust the current Device node definitions to be more generic and add some sort of key (type and role are taken) to indicate the role of the device. Maybe we could convert role to sub role.
• Create a new Server node and renamed Device to NetworkDevice. From there we can keep the current role definition for NetworkDevice and create a new role definition for Server.

[petercrocker]

There's already a PR pending review to add on vendor-agnostic cloud schema and data: #20

As for adding in servers, what about using our schema library example for compute? https://github.com/opsmill/schema-library/blob/main/extensions/compute/compute.yml

[ryanmerolle]

I am totally up for using an existing example in the library referenced. Do we make this its own model or inherit some shared generic also leveraged by NetworkDevice?