feat(sync): Implement a simple Engine sync over RPC

[sagar-a16z]

Motivation

Fixes #102

Change Summary

• Wrote a simple test that copies data from one Engine (server) to another (client) over RPC.
• Added RPC APIs for querying IDRegistry events as well

Merge Checklist

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• The title of this PR adheres to the conventional commits standard
• The PR has been tagged with the appropriate change type label(s) (i.e. documentation, feature, bugfix, or chore)

Additional Context

Depends on #105.
I will rebase this once that's landed.

[codecov-commenter]

Codecov Report

Base: 90.51% // Head: 90.68% // Increases project coverage by +0.16% 🎉

Coverage data is based on head (53c1672) compared to base (e765257).
Patch coverage: 92.30% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #106      +/-   ##
==========================================
+ Coverage   90.51%   90.68%   +0.16%     
==========================================
  Files          23       23              
  Lines        1329     1342      +13     
  Branches      268      271       +3     
==========================================
+ Hits         1203     1217      +14     
+ Misses        119      118       -1     
  Partials        7        7              

Impacted Files	Coverage Δ
src/network/rpc.ts	90.62% <90.00%> (-0.08%)	⬇️
src/engine/index.ts	85.85% <100.00%> (+0.13%)	⬆️
src/sets/signerSet.ts	97.41% <0.00%> (+1.72%)	⬆️

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