Add script to migrate RocksDB database

[loriopatrick]

Motivation

Allows you to tweak storage settings for testing / benchmarking.

Change Summary

Makes addon modules public. Doesn't affect runtime application, only adds helpful script to migrate the database state for testing.

Merge Checklist

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• PR title adheres to the conventional commits standard
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Additional Context

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PR-Codex overview

The focus of this PR is to refactor the lib.rs file, add a new binary migrate-db, and improve the database migration process.

Detailed summary

• Moved modules to pub mod in lib.rs
• Added a new binary migrate-db in Cargo.toml
• Refactored database open method in rocksdb.rs
• Implemented a database migration script in migrate_db.rs

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[changeset-bot]

⚠️ No Changeset found

Latest commit: ff7970c

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Name	Status	Preview	Comments	Updated (UTC)
hub-monorepo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 17, 2024 4:20pm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.20%. Comparing base (1880070) to head (ff7970c).
Report is 156 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2009       +/-   ##
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- Coverage   74.05%   36.20%   -37.86%     
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  Files          99      140       +41     
  Lines        9425    21996    +12571     
  Branches     2097     7512     +5415     
===========================================
+ Hits         6980     7963      +983     
- Misses       2327    12491    +10164     
- Partials      118     1542     +1424     

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