feat: introduce the stacks-codec component

[hugocaillard]

Description

• introduce a stacks-codec component, extracting the codec that was in clarity-repl
• making stacks-rpc-client lighter by not pulling the whole clarity-repl component but just stacks-codec
• making chainhook-sdk lighter by not pulling the whole stacks-rpc-client component but just stacks-codec
• remove the default values for PoxInfo

This goes in pair with hirosystems/chainhook#542

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 40.91%. Comparing base (175103e) to head (3e81431).

❗ Current head 3e81431 differs from pull request most recent head c796160. Consider uploading reports for the commit c796160 to get more accurate results

Files	Patch %	Lines
...omponents/stacks-network/src/chains_coordinator.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1399      +/-   ##
==========================================
+ Coverage   40.87%   40.91%   +0.04%     
==========================================
  Files          87       87              
  Lines       32562    32519      -43     
==========================================
- Hits        13309    13305       -4     
+ Misses      19253    19214      -39     

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[lgalabru]

Address #1038

[MicaiahReid]

I love it, thanks for doing this, @hugocaillard!