[nnc] Add BufHandle.store to python API (#65213)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/65213
Test Plan: Imported from OSS
Reviewed By: mrshenli
Differential Revision: D31328502
Pulled By: bertmaher
fbshipit-source-id: 1f260f68692c3859350587afe021a500672d79f0
