Add redaction workflow logic

[sfoslund]

This PR is a follow up to #575, which added the CLI plumbing for the redact verb. This PR populates the redact workflow with the redaction logic. The current redaction logic involves the following components:

• Remove the entire files section
• Remove any relationship entries which include a file reference
• Remove any packages.hasFiles entries
• Remove any packages.sourceInfo entries (note that this property is not populated for SBOMs generated by this tool, but we have seen syft SBOMs in which this property contains file information)
• If the document namespace indicates that the SBOM was generated via this sbom-tool, generate a new unique guid section of the document namespace

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 84.10596% with 24 lines in your changes are missing coverage. Please review.

Project coverage is 59.82%. Comparing base (b005f3f) to head (03ae5e3).

Files	Patch %	Lines
...rosoft.Sbom.Api/Workflows/SBOMRedactionWorkflow.cs	85.52%	5 Missing and 6 partials ⚠️
...t.Sbom.Api/FormatValidator/ValidatedSBOMFactory.cs	0.00%	5 Missing ⚠️
...icrosoft.Sbom.Api/FormatValidator/ValidatedSBOM.cs	0.00%	4 Missing ⚠️
...DependencyInjection/ServiceCollectionExtensions.cs	0.00%	2 Missing ⚠️
...crosoft.Sbom.Api/Workflows/Helpers/SbomRedactor.cs	98.41%	0 Missing and 1 partial ⚠️
src/Microsoft.Sbom.Common/FileSystemUtils.cs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #581      +/-   ##
==========================================
+ Coverage   59.36%   59.82%   +0.46%     
==========================================
  Files         266      268       +2     
  Lines        8101     8249     +148     
  Branches      947      972      +25     
==========================================
+ Hits         4809     4935     +126     
- Misses       2870     2886      +16     
- Partials      422      428       +6     

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[sfoslund]

@DaveTryon @alisonlomaka thanks for the feedback, I believe I have made all the requested changes, let me know if I missed anything!