feature/unify sql store

[gfyrag]

• Refactor storage to reduce duplicate code between different sql engines.
• Add some utils for testing

[codecov]

Codecov Report

Merging #94 (fd52a25) into main (ec716fa) will increase coverage by 29.30%.
The diff coverage is 65.24%.

❗ Current head fd52a25 differs from pull request most recent head 21406f9. Consider uploading reports for the commit 21406f9 to get more accurate results

@@             Coverage Diff             @@
##             main      #94       +/-   ##
===========================================
+ Coverage   10.37%   39.68%   +29.30%     
===========================================
  Files          45       39        -6     
  Lines        1947     1517      -430     
===========================================
+ Hits          202      602      +400     
+ Misses       1732      867      -865     
- Partials       13       48       +35     

Impacted Files	Coverage Δ
cmd/root.go	0.00% <0.00%> (ø)
cmd/ui.go	0.00% <ø> (ø)
config/config.go	0.00% <0.00%> (-46.81%)	⬇️
storage/driver.go	100.00% <ø> (ø)
storage/sqlstorage/store.go	73.33% <73.33%> (ø)
storage/sqlstorage/metadata.go	77.77% <81.81%> (ø)
storage/sqlstorage/driver.go	84.61% <84.61%> (ø)
storage/sqlstorage/transactions.go	86.51% <90.47%> (ø)
storage/sqlstorage/accounts.go	86.04% <100.00%> (ø)
storage/sqlstorage/aggregations.go	87.67% <100.00%> (ø)
... and 7 more

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