feat: introduce cache file v2

[MrCroxx]

What changes were proposed in this pull request?

Introduce cache file v2. Which is prepared for append-only & punch-hole write model.

Which issues is this PR related to?

#171

[codecov]

Codecov Report

Merging #175 (a303a77) into main (0770ce4) will decrease coverage by 1.21%.
The diff coverage is 62.11%.

@@            Coverage Diff             @@
##             main     #175      +/-   ##
==========================================
- Coverage   84.00%   82.78%   -1.22%     
==========================================
  Files          90       94       +4     
  Lines        9028     9307     +279     
==========================================
+ Hits         7584     7705     +121     
- Misses       1444     1602     +158     

Impacted Files	Coverage Δ
storage/src/file_cache/error.rs	0.00% <ø> (ø)
storage/src/file_cache/judge.rs	0.00% <0.00%> (ø)
storage/src/lib.rs	100.00% <ø> (ø)
storage/src/file_cache/manager.rs	5.00% <5.00%> (ø)
storage/src/file_cache/buffer.rs	70.39% <29.16%> (-6.34%)	⬇️
storage/src/file_cache/file_old.rs	67.41% <67.41%> (ø)
storage/src/file_cache/fs.rs	73.33% <73.33%> (ø)
storage/src/file_cache/file.rs	88.23% <86.88%> (-5.03%)	⬇️
wheel/src/lib.rs	91.02% <0.00%> (+0.42%)	⬆️

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