[kernel] Support new KCache Layout - Context Attention Triton Kernel#5658

yuanheng-zhao merged 4 commits intohpcaitech:feature/colossal-inferhpcaitech/ColossalAI:feature/colossal-inferfrom

yuanheng-zhao:kernel/inference/triton/attnyuanheng-zhao/ColossalAI:kernel/inference/triton/attnCopy head branch name to clipboard