Add Opset 13 support for Relu (#816)

1. add opset 13 support for Relu to close issue #811

Signed-off-by: Winnie Tsang <wtsang@us.ibm.com>

Author: winnietsang

doc/support_status.md

@@ -1,7 +1,7 @@
 # ONNX-Tensorflow Support Status
 |||
 |-:|:-|
-|ONNX-Tensorflow Version|Master ( commit id: 9e7b54b1d14aafc4aa6329c12f0ee74226255eca )|
+|ONNX-Tensorflow Version|Master ( commit id: fb3b6758903516d80ad4cc506bc4f589be8a7231 )|
 |ONNX Version|Master ( commit id: 274e8b54e4c11c40a8c0a89599196f5311088b64 )|
 |Tensorflow Version|v2.3.1|
 
@@ -129,7 +129,7 @@ Notes:
 |ReduceProd|**1**|1|1|1|1|1|1|1|1|1|**11**|11|**13**|ReduceProd|
 |ReduceSum|**1**|1|1|1|1|1|1|1|1|1|**11**|11|**13**:small_red_triangle:|ReduceSum|
 |ReduceSumSquare|**1**|1|1|1|1|1|1|1|1|1|**11**|11|**13**:small_red_triangle:|ReduceSumSquare|
-|Relu|**1**|1|1|1|1|**6**|6|6|6|6|6|6|**13**:small_red_triangle:|Relu|
+|Relu|**1**|1|1|1|1|**6**|6|6|6|6|6|6|**13**|Relu|
 |Reshape|**1**|1|1|1|**5**|5|5|5|5|5|5|5|**13**:small_red_triangle:|Reshape|
 |Resize|-|-|-|-|-|-|-|-|-|**10**:small_orange_diamond:|**11**:small_orange_diamond:|11:small_orange_diamond:|**13**:small_orange_diamond:|Resize|
 |ReverseSequence|-|-|-|-|-|-|-|-|-|**10**|10|10|10|ReverseSequence|
@@ -179,7 +179,7 @@ Notes:
 |Where|-|-|-|-|-|-|-|-|**9**|9|9|9|9|Where|
 |Xor|**1**|1|1|1|1|1|**7**|7|7|7|7|7|7|Xor|
 
-ONNX-TF Supported Operators / ONNX Operators: 122 / 162
+ONNX-TF Supported Operators / ONNX Operators: 123 / 162
 
 Notes:
 1. Cast: Cast string to data types other than float32/float64/int32/int64 is not supported in Tensorflow

onnx_tf/handlers/backend/relu.py

@@ -16,3 +16,7 @@ def version_1(cls, node, **kwargs):
   @classmethod
   def version_6(cls, node, **kwargs):
     return [cls.make_tensor_from_onnx_node(node, **kwargs)]
+
+  @classmethod
+  def version_13(cls, node, **kwargs):
+    return [cls.make_tensor_from_onnx_node(node, **kwargs)]

onnx_tf/opset_version.py

@@ -130,7 +130,7 @@
     'ReduceProd': [1, 11, 13],
     'ReduceSum': [1, 11],
     'ReduceSumSquare': [1, 11],
-    'Relu': [1, 6],
+    'Relu': [1, 6, 13],
     'Reshape': [1, 5],
     'Resize': [10, 11, 13],
     'ReverseSequence': [10],