feat: crl cache

[Two-Hearts]

This PR adds an implementation of CRL cache along with {NOTATION_CACHE} directory for callers to initialize the cache.

[codecov]

Codecov Report

Attention: Patch coverage is 90.69767% with 8 lines in your changes missing coverage. Please review.

Project coverage is 81.34%. Comparing base (9faa6e2) to head (8df277a).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/file/file.go	53.84%	3 Missing and 3 partials ⚠️
verifier/crl/crl.go	96.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #462      +/-   ##
==========================================
+ Coverage   81.01%   81.34%   +0.32%     
==========================================
  Files          33       34       +1     
  Lines        2492     2578      +86     
==========================================
+ Hits         2019     2097      +78     
- Misses        331      335       +4     
- Partials      142      146       +4     

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[shizhMSFT]

LGTM

[priteshbandi]

LGTM