Implement multi-batch support for v2, v3, and r1 models with backend type configured as ktransformers. #1428
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…type configured as ktransformers.
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由于当前ROCM不支持flashinfer，无法跑多batch推理，所以增加ktransformers支持
在ROCM平台使用HIP架构芯片测试，input/output设置为2048/128，1024/1024和4096/1024，R1 prefill和decode分别最高提升50%和105%