Add MulCastPattern PDLL Pattern

[JasonChen9]

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Speed stats:

GPU Name: GeForce GTX 1080 









❌ OneFlow resnet50 time: 139.5ms (= 13952.0ms / 100, input_shape=[16, 3, 224, 224], ddp, world size=2)
PyTorch resnet50 time: 160.2ms (= 16024.5ms / 100, input_shape=[16, 3, 224, 224], ddp, world size=2)
✔️ Relative speed: 1.15 (= 160.2ms / 139.5ms)

OneFlow resnet50 time: 84.8ms (= 8480.1ms / 100, input_shape=[8, 3, 224, 224], ddp, world size=2)
PyTorch resnet50 time: 111.6ms (= 11160.8ms / 100, input_shape=[8, 3, 224, 224], ddp, world size=2)
✔️ Relative speed: 1.32 (= 111.6ms / 84.8ms)

OneFlow resnet50 time: 57.6ms (= 11514.4ms / 200, input_shape=[4, 3, 224, 224], ddp, world size=2)
PyTorch resnet50 time: 77.3ms (= 15467.9ms / 200, input_shape=[4, 3, 224, 224], ddp, world size=2)
✔️ Relative speed: 1.34 (= 77.3ms / 57.6ms)

OneFlow resnet50 time: 43.8ms (= 8751.0ms / 200, input_shape=[2, 3, 224, 224], ddp, world size=2)
PyTorch resnet50 time: 70.4ms (= 14082.8ms / 200, input_shape=[2, 3, 224, 224], ddp, world size=2)
✔️ Relative speed: 1.61 (= 70.4ms / 43.8ms)

OneFlow resnet50 time: 40.2ms (= 8042.1ms / 200, input_shape=[1, 3, 224, 224], ddp, world size=2)
PyTorch resnet50 time: 77.8ms (= 15561.7ms / 200, input_shape=[1, 3, 224, 224], ddp, world size=2)
✔️ Relative speed: 1.94 (= 77.8ms / 40.2ms)

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View latest API docs preview at: https://staging.oneflow.info/docs/Oneflow-Inc/oneflow/pr/9715/