Socket option handling clean ups for endpoints.

[gdamore]

The framework for saving and replaying socket options was left over, and should not be used. But we do need to send the initial socket options to endpoints when creating them, so we have support for that in a cleaner fashion that does not require memory allocations.

fixes #

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[codecov]

Codecov Report

Attention: Patch coverage is 88.57143% with 4 lines in your changes missing coverage. Please review.

Project coverage is 80.50%. Comparing base (4907623) to head (ae6cd21).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/core/socket.c	88.57%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1912      +/-   ##
==========================================
+ Coverage   80.25%   80.50%   +0.24%     
==========================================
  Files          94       94              
  Lines       24129    24073      -56     
  Branches     3253     3239      -14     
==========================================
+ Hits        19365    19379      +14     
+ Misses       4689     4622      -67     
+ Partials       75       72       -3     

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