build: init state reader crate

[Itay-Tsabary-Starkware]

Stack:

• refactor: move rpc state reader to state reader crate #492
• refactor: move state reader modules to a new crate #486
• build: init state reader crate #483 ⬅

⚠️ Part of a stack created by spr. Do not merge manually using the UI - doing so may have unexpected results.

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This change is 

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.38%. Comparing base (9d16bbc) to head (c44d947).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #483   +/-   ##
=======================================
  Coverage   83.38%   83.38%           
=======================================
  Files          37       37           
  Lines        1776     1776           
  Branches     1776     1776           
=======================================
  Hits         1481     1481           
  Misses        218      218           
  Partials       77       77           

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