Add Qwen3-Moe fuse qkv/ffn modeling

[llbdyiu66]

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[paddle-bot]

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 35.90909% with 141 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (develop@85529fe). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
paddleformers/transformers/qwen2_moe/modeling.py	34.92%	41 Missing ⚠️
paddleformers/transformers/qwen3/modeling.py	32.78%	41 Missing ⚠️
paddleformers/transformers/qwen2/modeling.py	35.08%	37 Missing ⚠️
paddleformers/transformers/qwen3_moe/modeling.py	43.58%	22 Missing ⚠️

❌ Your patch status has failed because the patch coverage (35.90%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #2981   +/-   ##
==========================================
  Coverage           ?   31.35%           
==========================================
  Files              ?      420           
  Lines              ?    68728           
  Branches           ?        0           
==========================================
  Hits               ?    21547           
  Misses             ?    47181           
  Partials           ?        0           

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[lugimzzz]

补充一个fuse 和非fuse的单测 logits对比单测 ，类似下面这种https://github.com/PaddlePaddle/PaddleFormers/blob/develop/tests/transformers/qwen3moe/test_modeling.py#L396