add kernel-filter to select kernel for allreduce-rmsnorm

[shunting314]

Stacked PRs:

• Use a larger timeout setting to autotune distributed kernels #1800
• move compile time dist APIs to _dist_utils.py #1799
• properly codegen hl.triton_kernel #1797
• cleanup the autotuner factory function #1770
• remove hl.signal/wait #1791
• restrict to persistent pid for dist kernels #1772
• move distributed runtime utils out of examples/ folder #1771
• increase signal pad size for dist matmul kernels #1753
• avoid nvshmem symm-mem backend #1750
• helion distributed kernel autotuning #1532
• ->add kernel-filter to select kernel for allreduce-rmsnorm #1744

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add kernel-filter to select kernel for allreduce-rmsnorm

it's useful to pick a specifc kernel to run when debugging stuck job.