Add Quantizers for Qwen3VLMoeTextDecoderLayer

[soodoshll]

What does this PR do?

Type of change: ? new feature

Overview: ? huggingface transformers library implements Qwen3VL Moe layer as a monolithic module, instead of assembling it using Linear layers, which cannot be recognized by modelopt's quantizer now. This PR introduces a conversion from hf's qwen3vl_moe MoE layers to qewn3_moe MoE layers which consist of a set of Linear layers.

Testing

Tested with

python hf_ptq.py --pyt_ckpt_path=Qwen/Qwen3-VL-30B-A3B-Instruct --qformat=nvfp4 --dataset wikipedia

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.73%. Comparing base (1562dd6) to head (37c24f4).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #666      +/-   ##
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+ Coverage   74.72%   74.73%   +0.01%     
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  Files         192      192              
  Lines       18833    18870      +37     
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+ Hits        14073    14103      +30     
- Misses       4760     4767       +7     

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[shengliangxu]

LGTM