Sparse CSR: Add `torch.randn_like` (#68083)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68083
This PR adds support for `torch.randn_like(sparse_csr_tensor)`.
It creates a new sparse csr tensor with same indices but different values that are normally distributed.
In addition `.normal_()` and `torch.empty_like` were implemented because `randn_like` is a composite of these two functions.
cc nikitaved pearu cpuhrsch IvanYashchuk
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D33511280
Pulled By: cpuhrsch
fbshipit-source-id: 6129083e8bc6cc5af2e0191294bd5e4e864f6c0e
