fix: some packages not being downloaded

[wgnf]

📫 Addressed Issue(s)

• Closes #101

📄 Description

This is to fix issues with some packages not being downloaded, i.e. System.* packages

• [x] provider for nuget caches
• [x] add "artifact directory" to package class
• [x] get packages before downloading
• [x] enrich packages using artifact directory
• [x] ExtractLicenses: improve coverage for tempDir.Exists true/false!
• [x] "after enrich with artifacts" to download missing artifacts (using the old approach using .Where(p => p.ArtifactDirectory == null))
• [x] use the new "artifact directory" for enriching with license-information
• [x] download for NuGet-CLI is not needed anymore
• [x] check TODOs
• [x] temp-directory still needed?
• [x] project references when include-transitive ...?
  • [x] get project-references for project and their project-references (name = PackageId > AssemblyName > FileName)
• [x] test it (duh)

✅ Checks

• [x] My PR adheres to the general code-style of this project (look at other code if you're unsure)
• [ ] My code requires changes to the documentation
• [ ] I have updated the documentation as required
• [x] All the automated tests have passed

ℹ Additional Information

[codecov[bot]]

Codecov Report

Merging #108 (3b91305) into main (34abca1) will increase coverage by 0.36%. The diff coverage is 100.00%.

:exclamation: Current head 3b91305 differs from pull request most recent head 49a284b. Consider uploading reports for the commit 49a284b to get more accurate results

@@            Coverage Diff             @@
##             main     #108      +/-   ##
==========================================
+ Coverage   96.47%   96.83%   +0.36%     
==========================================
  Files          52       54       +2     
  Lines        2097     2178      +81     
==========================================
+ Hits         2023     2109      +86     
+ Misses         74       69       -5     

Impacted Files	Coverage Δ
src/Core/Liz.Core/Extract/ExtractLicenses.cs	100.00% <100.00%> (ø)
...se/EnrichPackageReferenceWithLicenseInformation.cs	100.00% <100.00%> (ø)
...DotnetCli/DownloadPackageReferencesViaDotnetCli.cs	100.00% <100.00%> (ø)
...nces/DotnetCli/GetPackageReferencesViaDotnetCli.cs	100.00% <100.00%> (ø)
...ckageReferences/DownloadPackageReferencesFacade.cs	100.00% <100.00%> (ø)
...ces/EnrichPackageReferenceWithArtifactDirectory.cs	100.00% <100.00%> (ø)
src/Core/Liz.Core/Projects/GetProjectReferences.cs	100.00% <100.00%> (ø)
...lt/ValidateLicenseTypesBlacklistResultProcessor.cs	97.14% <100.00%> (ø)
...lt/ValidateLicenseTypesWhitelistResultProcessor.cs	97.14% <100.00%> (ø)
...ore/Liz.Core/Utils/FindPackageReferenceArtifact.cs	100.00% <100.00%> (ø)
... and 2 more

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