[Unity] PagedKVCache supporting on-the-fly RoPE calculation

This PR enhances PagedKVCache with the inline RoPE compute,
which unblocks the movement towards sliding window and attention
sink.

Both FlashInfer and TIR kernels are updated in this PR with
the RoPE calculation. Note that FlashInfer is bumped in order
to include the RoPE update.

The previous standalone kernel used for RoPE application
are thereby removed.

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Co-authored-by: Bohan Hou <[email protected]>
Co-authored-by: Hongyi Jin <[email protected]>

Author: 3 people