Support nemotron nano vlm v1 nvfp4 quantize + export

[Edwardf0t1]

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 73.84%. Comparing base (8a5736a) to head (281029e).
⚠️ Report is 21 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #347      +/-   ##
==========================================
- Coverage   73.86%   73.84%   -0.03%     
==========================================
  Files         172      172              
  Lines       17409    17453      +44     
==========================================
+ Hits        12860    12888      +28     
- Misses       4549     4565      +16     

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