feat: Add accounts filtering on address or metadata

[gfyrag]

• Add account filtering.
• Fix total on transactions count.
• Add filtering on account metadata.
• Add metadata filtering at api level and fix tests...
• Complete swagger.

[codecov]

Codecov Report

Merging #185 (4d6e621) into main (62f28fb) will increase coverage by 9.71%.
The diff coverage is 77.77%.

❗ Current head 4d6e621 differs from pull request most recent head d49a84b. Consider uploading reports for the commit d49a84b to get more accurate results

@@            Coverage Diff             @@
##             main     #185      +/-   ##
==========================================
+ Coverage   59.27%   68.98%   +9.71%     
==========================================
  Files          81       81              
  Lines        3565     3660      +95     
==========================================
+ Hits         2113     2525     +412     
+ Misses       1259      922     -337     
- Partials      193      213      +20     

Impacted Files	Coverage Δ
internal/pgtesting/testing.go	86.95% <ø> (+60.86%)	⬆️
pkg/storage/sqlstorage/mapping.go	80.00% <ø> (+5.00%)	⬆️
pkg/core/transaction.go	66.66% <33.33%> (ø)
pkg/api/internal/testing.go	89.68% <50.00%> (+67.94%)	⬆️
pkg/storage/sqlstorage/sqlite.go	63.93% <56.09%> (+44.88%)	⬆️
pkg/storage/sqlstorage/driver.go	60.00% <62.50%> (+1.37%)	⬆️
pkg/ledger/ledger.go	78.00% <77.77%> (+9.20%)	⬆️
pkg/storage/sqlstorage/schema.go	83.67% <80.00%> (-0.95%)	⬇️
cmd/server_start.go	75.75% <86.66%> (+9.09%)	⬆️
pkg/core/metadata.go	76.19% <87.50%> (+8.74%)	⬆️
... and 28 more

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