Distance module (#26424)
Summary:
Adds `Distance` module parity.
https://github.com/pytorch/pytorch/issues/25883
Pull Request resolved: https://github.com/pytorch/pytorch/pull/26424
Differential Revision: D17487314
Pulled By: yf225
fbshipit-source-id: c7d124cb4afb08a4733e7212af0bb276bf32d172