updates for specifications

[vsoch]

Updates to do: first we need to represent these relationships:

Thing > Hardware
Thing > OperatingSystem
Thing > SoftwareHost
Thing > ComputationalEnvironment 
          - has SoftwareHost (many) each of which...
            - runsOn Hardware
            - supports Virtualization
            - has OperatingSystem

Thing > Virtualization
        - isSupportedBy SoftwareHost

Thing > Virtualization > Hypervisor
Thing > Virtualization > Container
                         - has OperatingSystem
                         - buildFrom ContainerRecipe (sometimes)
                         - has SoftwareApplication (sometimes)
                         - has annotations

Thing > Virtualization > Container > ContainerImage > ContainerRuntime
Thing > CreativeWork > Collection > ContainerDistribution
                                    has Container (many)

I'm not deliving into Computational Environment, that's too large of a chunk to tackle right now.
It could be added as a parent node at some point.

• https://schema.org/keywords can be used to describe tags (and subtypes) for Containers
• https://schema.org/PropertyValue can be used for random properties that aren't added