Dimension inheritance (dimension grouping)

[alt-dima]

For example, in examples/inventory/demo-org/datacenter we have multiple datacenters

• staging1.json
• staging2.json
• production.json

Need new feature to group

• staging1 and staging2 under "test-account" dimension (examples/inventory/demo-org/account/test-account.json)
• "production" under "production" dimension (examples/inventory/demo-org/account/prod-account.json).

To be able to query Toaster-ToasterDB like "give me all the datacenter in test-account" and it should return staging1 and staging2 dimensions

And with tofugu cook execution it should provide also all the parent dimensions