Progress output specific for visualization tools

[SteveL-MSFT]

Summary of the new feature / enhancement

To aid use of DSC configurations for non-technical users, it would make sense to build a GUI tool that shows the configuration graphically and also shows progress and status as it is processed.

Proposed technical implementation details (optional)

dsc engine can emit additional progress (or perhaps other type) of JSON to helps visualization tools represent the configuration and progress:

• The execution order is currently a debug trace, but it could be emitted as a progress type object
• It may help with visualization by emitting some context of if the resource affects the system, application, or user (profile), for example. We can't have this as something that's part of a resource itself since a resource could affect all 3 but depending on use during runtime only the scope is defined
• It may be useful to have the concept of impact level defined at runtime so that a visualization tool can prompt the user to continue if the operation can be destructive, for example