aten.index.Tensor

[jdh8]

[swimdi]

In #559 it lowering aten.index.Tensor to serveral aten.reshape/getitem/aten.cat, but aten.reshape have no lowering yet

I try to add lowering of aten.reshape, but got this error

pytest tests/lowering/misc/test_index.py

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <--- HERE
    getitem_3 = ttnn_to_device_1[1]

peError: object of type 'ttnn._ttnn.tensor.Tensor' has no len()

It seems failed at getitem_3 = ttnn_to_device_1[1], I think there have two way to solved it

1. find why getitem_3 = ttnn_to_device_1[1] failed and TT add the support
2. not use getitem, use aten.select and later lowering it to ttnn.reshape & ttnnn.slice, but because the dim, start is node not int/float, so aten.select need to exapand its support

c.c. @ayerofieiev-tt @pschang-phy