Website: Choosing certificate with longest remaining validity

[Joe-Rennert]

Pull Request (PR) description

Update Website resource so that when a subject is specified and multiple matching certificates are found, the resource will use the certificate with the longest remaining validity period based on the "NotAfter" property of the certificate. It also excludes certificates from consideration when they do not have a Private Key available.

This Pull Request (PR) fixes the following issues

• Fixes xWebsite: finds certificates with no private key to bind to SSL. Doesn't choose a cert with most available time. #578
• Closes xWebSite: Choose cert with greatest validity #579

Task list

• Added an entry to the change log under the Unreleased section of the file CHANGELOG.md.
  Entry should say what was changed and how that affects users (if applicable), and
  reference the issue being resolved (if applicable).
• Resource documentation added/updated in README.md.
• Resource parameter descriptions added/updated in README.md, schema.mof and comment-based
  help.
• Comment-based help added/updated.
• Localization strings added/updated in all localization files as appropriate.
• Examples appropriately added/updated.
• Unit tests added/updated. See DSC Community Testing Guidelines.
• Integration tests added/updated (where possible). See DSC Community Testing Guidelines.
• New/changed code adheres to DSC Community Style Guidelines.

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This change is 

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88%. Comparing base (3798530) to head (8f4cf7b).

Additional details and impacted files

@@         Coverage Diff         @@
##           main   #633   +/-   ##
===================================
  Coverage    88%    88%           
===================================
  Files        15     15           
  Lines      1924   1925    +1     
===================================
+ Hits       1697   1698    +1     
  Misses      227    227           

Files	Coverage Δ
source/DSCResources/DSC_WebSite/DSC_WebSite.psm1	97% <100%> (+<1%)	⬆️

[johlju]

Reviewed 3 of 3 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @Joe-Rennert)

[johlju]

@Joe-Rennert great work on the tests! 🙂

[johlju]

Will merge as soon as the tests passes, I had to kick them off again because one failed on an unrelated error. 🙂