↔ [Converter] Add support for Tensor slicing and selection operators in the FX aten path

[gs-olive]

aten.slice, aten.select, aten.expand

• Function Schema:

  • torch.ops.aten.expand.default: ((torch.int64,), {})
  • torch.ops.aten.slice.Tensor: ((torch.float32,), {})
  • torch.ops.aten.slice.Tensor: ((torch.int32,), {})
  • torch.ops.aten.slice.Tensor: ((torch.float32,), {})
  • torch.ops.aten.slice.Tensor: ((torch.int32,), {})
  • torch.ops.aten.select.int: ((torch.float32,), {})

• Original PyTorch API: torch.expand, torch.slice, torch.select

• Relevant TensorRT Documentation: IGatherLayer, IShuffleLayer

Add support for slice, select, and expand as aten converters.

[github-actions]

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