[Documentation]: Document Tensor operations that move the Tensor off the symmetric heap

[mawad-amd]

Description of errors

There are PyTorch tensor ops that reallocate the Tensor and hence the Tensor becomes outside of the symmetric heap. We need to document these and possibly offer alternative APIs. For instance:

shmem = iris.iris()
tensor = shmem.zeros(4, 3)  # On symmetric heap
non_contiguous = tensor[::2]  # Non-contiguous slice
reshaped = non_contiguous.reshape(-1)  # Creates copy off heap!

Attach any links, screenshots, or additional evidence you think will be helpful.

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