[fusion] Add ConvTranspose+BN fusion support (#70022)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/70022
Add support for fusing ConvTranpose{1,2,3}d with BatchNorm{1,2,3}d. This re-uses the existing fusion logic but adds a "transpose" flag to the fusing function which when enabled will use the appropriate reshape for ConTranspose's transposed weights.
Test Plan: `buck test mode/dev //caffe2/test:quantization -- -r quantization.eager.test_fusion.TestFusion`
Reviewed By: jerryzh168
Differential Revision: D33074405
fbshipit-source-id: 5e9eff1a06d8f98d117e7d18e80da8e842e973b7
