fix slice converter for caffe

mace/python/tools/converter_tool/caffe_converter.py

@@ -561,7 +561,7 @@ class CaffeConverter(base_converter.ConverterInterface):
 
     def convert_slice(self, caffe_op):
         op = self.convert_general_op(caffe_op)
-        op.type = MaceOp.Slice.name
+        op.type = MaceOp.Split.name
 
         if caffe_op.layer.HasField('slice_param'):
             param = caffe_op.layer.slice_param

mace/python/tools/converter_tool/shape_inference.py

@@ -40,7 +40,7 @@ class ShapeInference(object):
             MaceOp.Activation.name: self.infer_shape_general,
             MaceOp.Pooling.name: self.infer_shape_conv_pool_shape,
             MaceOp.Concat.name: self.infer_shape_concat,
-            MaceOp.Slice.name: self.infer_shape_slice,
+            MaceOp.Split.name: self.infer_shape_slice,
             MaceOp.Softmax.name: self.infer_shape_general,
             MaceOp.FullyConnected.name: self.infer_shape_fully_connected,
             MaceOp.Crop.name: self.infer_shape_crop,