Basic implementation of QRelu in C10 (#19091)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19091
Implements a basic quantized ReLU (uint8). This is a temporary solution before using the `QTensor` type instead of the tuple.
Reviewed By: dzhulgakov
Differential Revision: D14565413
fbshipit-source-id: 7d53cf5628cf9ec135603d6a1fb7c79cd9383019
