Add some missing comments on public methods

[joegoldman2]

• Add missing comments to some public methods
• Fix a few spelling mistakes

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (bfc2f5b) 73.83% compared to head (8366d34) 73.83%.

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #440   +/-   ##
=======================================
  Coverage   73.83%   73.83%           
=======================================
  Files          99       99           
  Lines        2710     2710           
  Branches      445      445           
=======================================
  Hits         2001     2001           
  Misses        604      604           
  Partials      105      105           

Files	Coverage Δ
Src/Fido2.AspNet/DateTimeUtilities.cs	100.00% <ø> (ø)
...rc/Fido2.AspNet/DistributedCacheMetadataService.cs	88.28% <100.00%> (ø)
...rc/Fido2.Models/Objects/MakeNewCredentialResult.cs	100.00% <ø> (ø)
Src/Fido2/AuthenticatorAssertionResponse.cs	42.65% <ø> (ø)
Src/Fido2/Fido2.cs	90.00% <ø> (ø)
Src/Fido2/Objects/AttestedCredentialData.cs	86.11% <ø> (ø)

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[abergs]

Hey @joegoldman2 - thanks for the PR's. Would you mind sending me an email to anders@andersaberg.com, I just have something I want to check with you.

[aseigler]

Good cleanup!