Paxos Implementation

[destrex271]

This PR implements paxos similar to spanner.

• Uses NTP to mock truetime
• Need to figure out how to implement quoroum system and how it integrates with the current KV engine

[deepsource-io]

Here's the code health analysis summary for commits 256c598..4460f2c. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
Rust	❌ Failure	❗ 1 occurence introduced	View Check ↗

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