Prototype of Lockfile Linter

[william2958]

Summary

This PR introduces the prototype for the lockfile linter, which is a way of enforcing linting "rules" to the lockfile. Example rules may include:

side-by-side version detection

For this rule, the lockfile linter will look for side-by-side "cluster-nodes", which are side-by-side dependency that don't have a parent side-by-side dependency. This means that these "cluster-nodes" are the source cause for many other side-by-side versions, as their dependency trees are highly likely to introduce other side-by-side versions. Thus, we are mainly concerned about the "root" side-by-side version because that is likely the root cause for all the others.

This detection will also flag projects (defined by packages in the rush.json file)

Details

How it was tested

Impacted documentation