refactor(npm): separate lockfile 3 detector

[melotic]

Separates the lock file 3 specific code into a new detector.

[github-actions]

👋 Hi! It looks like you modified some files in the Detectors folder.
You may need to bump the detector versions if any of the following scenarios apply:

• The detector detects more or fewer components than before
• The detector generates different parent/child graph relationships than before
• The detector generates different devDependencies values than before

If none of the above scenarios apply, feel free to ignore this comment 🙂

[JamieMagee]

The diffs make this hard to review, but I think this is mostly just a copy-paste of existing code.

[melotic]

The CI run gives me confidence this is okay:

[19:07:54 INF] |______________________________|______________________________|______________________________|________________________________________|
[19:07:54 INF] |NpmLockfile3 (Beta)           |3.3 seconds                   |0                             |0                                       |
[19:07:54 INF] |______________________________|______________________________|______________________________|________________________________________|
[19:07:54 INF] |NpmWithRoots                  |3.3 seconds                   |59                            |4                                       |
[19:07:54 INF] |______________________________|______________________________|______________________________|________________________________________|

The (Beta) also indicates this is properly being run as an experimental detector:

component-detection/src/Microsoft.ComponentDetection.Orchestrator/Services/DetectorProcessingService.cs

Line 93 in cef34c5

providerElapsedTime.TryAdd(detector.Id + (isExperimentalDetector ? " (Beta)" : string.Empty), new DetectorRunResult

We would have also failed CI if we detected less components in the original NpmWithRoots detector.