Enable nvprims.transpose fusions for nvFuser (#86967)
This PR allows transposes to be fused with other operations. If a fusion group is formed only from operations that just manipulate metadata in PyTorch (transpose, view, etc.) then this group is not sent to nvFuser.
On top of that if we have converted to `nvprims` but then decided to not form a fusion group we modify the graph use `prim.impl_aten` attribute instead of calling `prim(*args, **kwargs)` that has a higher overhead.
cc @kevinstephano @jjsjann123
Pull Request resolved: https://github.com/pytorch/pytorch/pull/86967
Approved by: https://github.com/jjsjann123, https://github.com/SherlockNoMad
