[PQC][REBASE&FF] Update to Dynamic Caching

[Joey Vagedes (Javagedes)]

Description

This commit updates DxeImageVerificationLib in three ways:

1. Updates the current caching mechanism from a static cache with specific hashing algorithms supported, to a dynamic caching mechanism with support for any hashing algorithm supported by BaseCryptLib's HashAllByGuid.
2. Uses AuthenticodeLib to generate the authenticode image and extract the WIN_CERTIFICATEs.
3. Cleans up DB / DBX iteration to use the same underlying walker so that each check (IsHashInDB<X>, IsCertInDB<X>, contains only the logic needed to check if a specific entry in the DB / DBX matches the specific contents.

• Impacts functionality?
• Impacts security?
• Breaking change?
• Includes tests?
• Includes documentation?

How This Was Tested

Image Validation Test app continues to pass.

Integration Instructions

N/A

[Codecov Comments Bot (codecov-commenter)]

Codecov Report

❌ Patch coverage is 95.47170% with 12 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (dev/202511/post-quantum-staging@506bbae). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
...ityPkg/Library/DxeImageVerificationLib2/Database.c	96.08%	6 Missing and 1 partial ⚠️
...DxeImageVerificationLib2/DxeImageVerificationLib.c	86.36%	3 Missing ⚠️
...curityPkg/Library/DxeImageVerificationLib2/Cache.c	97.14%	1 Missing ⚠️
...ityPkg/Library/DxeImageVerificationLib2/Iterator.c	96.55%	1 Missing ⚠️

Additional details and impacted files

@@                        Coverage Diff                        @@
##             dev/202511/post-quantum-staging   #1905   +/-   ##
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  Coverage                                   ?   4.04%           
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  Files                                      ?     172           
  Lines                                      ?   39542           
  Branches                                   ?     517           
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  Hits                                       ?    1601           
  Misses                                     ?   37922           
  Partials                                   ?      19           

Flag	Coverage Δ
SecurityPkg	4.04% <95.47%> (?)

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