Refine data status consumption

[mattseddon]

2/2 main <- #2091 <- this

This PR improves our use of the new data status command.

We now:

• Show resources in multiple SCM groups when they are returned by data status.
• Apply a single decoration to each resource based on a prioritized list. We apply not in cache first, then uncommitted, then committed statuses the implementation matches the git extension's approach.
• Do not show checkout inline for resources that are uncommitted and also not in cache (action would not work).

Demo

https://user-images.githubusercontent.com/37993418/183329636-d9b3e429-0a92-4c61-8cab-95e66c2d63ea.mov

Note: Still need https://github.com/iterative/dvc/issues/8062 to be fixed before I can provide a non-confusing demo of not in cache behaviour.

[qlty-cloud-legacy[bot]]

Code Climate has analyzed commit e85a1671 and detected 2 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	2

The test coverage on the diff in this pull request is 100.0% (85% is the threshold).

This pull request will bring the total coverage in the repository to 96.7% (0.0% change).

View more on Code Climate.