Sparse: Implement simple unary ufuncs operators (#68887)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68887
Closes #46988, closes #46987, closes #46761
By "simple" I mean operators that map 0->0 so we can implement it by
just re-dispatching on the values tensor. That does mean we have `sin`
but not `cos` for example, but without fill value support this is the
best that can be done.
Most of these don't support autograd because the derivative formulas
use unsupported operators.
cc nikitaved pearu cpuhrsch IvanYashchuk
Test Plan: Imported from OSS
Reviewed By: jbschlosser
Differential Revision: D32734911
Pulled By: cpuhrsch
fbshipit-source-id: 203ab105799f3d2d682b01ca3d6b18e7c994776a
