feat: add fanout cache

[lanlou1554]

closes #17

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.39130% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 87.81%. Comparing base (c994a44) to head (d15a1d4).

Files	Patch %	Lines
storage-node/src/common/hash.rs	50.00%	5 Missing ⚠️
.../cache/data_store_cache/memdisk/data_store/disk.rs	0.00%	0 Missing and 1 partial ⚠️
storage-node/src/storage_manager.rs	98.43%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #60      +/-   ##
==========================================
+ Coverage   87.71%   87.81%   +0.09%     
==========================================
  Files          20       21       +1     
  Lines        3077     3151      +74     
  Branches     3077     3151      +74     
==========================================
+ Hits         2699     2767      +68     
- Misses        207      210       +3     
- Partials      171      174       +3     

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