onnxruntime

414a07a8 - Support Sum opset6 for ONNX 1.2 models (#1447)

Support Sum opset6 for ONNX 1.2 models (#1447) The NCHWc transform was missing support for the Sum_6 operator from ONNX 1.2. Older models would add unnecessary reorder ops and also would not use the Conv/Add fusion.