[PEFT] feat: Add support for MoE router weight adapter wrapper#1834

HollowMan6 wants to merge 2 commits intoNVIDIA-NeMo:mainNVIDIA-NeMo/Megatron-Bridge:mainfrom

HollowMan6:moe-router-loraHollowMan6/Megatron-Bridge:moe-router-loraCopy head branch name to clipboard