Merge pull request #1044 from fengyuentau:add_gelu

Add data & models for GELU layer

* add data & model

* add generator

Author: fengyuentau

testdata/dnn/onnx/data/input_gelu.npy

@@ -2598,3 +2598,12 @@ def make_node_with_constant(op_type, constant_value, inputs=None, outputs=None,
 
 gen_layer_norm_expanded()
 gen_layer_norm_expanded(constant_as_initializers=True)
+
+################# GELU #################
+
+x = torch.randn(1, 5, 20)
+gelu = nn.GELU()
+save_data_and_model("gelu", x, gelu)
+
+gelu_approximation = nn.GELU('tanh')
+save_data_and_model("gelu_approximation", x, gelu_approximation)