Add the normalize transform to the core library (#15891)
Summary:
Adds the `Normalize` transform to the core C++ frontend library.
ebetica ezyang soumith
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15891
Differential Revision: D13642167
Pulled By: goldsborough
fbshipit-source-id: 573428e626d6106cf2aadf3dc2e2aecb9a85efc3