Hybrid Integration for Qwen3Next, Qwen3.5, and Granite MoE models that include Mamba layers

[jlarson4]

Description

• Applied integration work from Prep work for Hybrid model integration #1254 to the existing architectures that use hybrid structure
• Added a GatedDeltaNet bridge component for handling hybridization in Qwen3Next and Qwen3.5
• Verified that existing models in these architectures function as expected & pass verification on all of their attention layers, in addition to generating coherent output

Type of change

• New feature (non-breaking change which adds functionality)

Checklist:

• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have not rewritten tests relating to key interfaces which would affect backward compatibility