Adding Histogram Binning Calibration to DSNN and Adding Type Double to Caffe2 ParallelSumOp/SumReluOp
Summary: As title.
Test Plan:
FBL job without this diff failed:
f221545832
Error message:
```
NonRetryableException: AssertionError: Label is missing in training stage for HistogramBinningCalibration
```
FBL job with canary package built in this diff is running without failure:
f221650379
Reviewed By: chenshouyuan
Differential Revision: D23959508
fbshipit-source-id: c077230de29f7abfd092c84747eaabda0b532bcc
