Make SEG-Y endianness and spec inference more robust and flexible

[tasansal]

• Ensure all revisions are parsed correctly pre/post 2.0
• Ensure endianness parsing and overrides are robust
• Re-write tests if necessary

[codecov]

Codecov Report

Attention: Patch coverage is 94.48276% with 8 lines in your changes missing coverage. Please review.

Project coverage is 95.19%. Comparing base (ff7321d) to head (aa3f3d0).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/segy/file.py	88.73%	4 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #223      +/-   ##
==========================================
+ Coverage   95.17%   95.19%   +0.02%     
==========================================
  Files          48       48              
  Lines        2195     2268      +73     
  Branches      263      128     -135     
==========================================
+ Hits         2089     2159      +70     
  Misses         81       81              
- Partials       25       28       +3     

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