Allow discontiguous NestedTensors to empty_like (#98383)
# Summary
Preivously we disallowd dis-contiguous NTs to passed into to empty_like. This was done out of an abundance of caution, :think:. However it should be safe to create an empty NT for dis-contiguous NTs. Empty like does account for offsets, strides, and sizes in construction of the result and therefore this should be safe.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/98383
Approved by: https://github.com/cpuhrsch
