[RFC] feat: concat iterator binary seek

[MrCroxx]

A binary seek implementation for ConcatIterator.

NOTICE

After implementing, I found that a BinarySeekableIterator is not needed, because each Iterator needs to implement it in different ways.

[MrCroxx]

Codecov Report

Merging #14 (e57c5fe) into main (0468c58) will increase coverage by 0.23%. The diff coverage is 97.77%.

@@            Coverage Diff             @@
##             main      #14      +/-   ##
==========================================
+ Coverage   93.84%   94.07%   +0.23%     
==========================================
  Files          12       13       +1     
  Lines         569      608      +39     
==========================================
+ Hits          534      572      +38     
- Misses         35       36       +1     

Impacted Files	Coverage Δ
storage/src/iterator/concat_iterator.rs	97.81% <93.33%> (-0.63%)	:arrow_down:
storage/src/iterator/mod.rs	100.00% <100.00%> (ø)

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[MrCroxx]

Duplicated with #15 , close.