[mlir][sparse] add more zero-preserving unary ops to sparse compiler

[mlir][sparse] add more zero-preserving unary ops to sparse compiler

Although we now have semi-rings to deal with arbitrary ops,
it is still good to convey zero-preserving semantics of
ops to the sparse compiler.

Reviewed By: bixia

Differential Revision: https://reviews.llvm.org/D125043