IVGCVSW-2365 Add Reference Equal Workload Implementation

 * Add reference equal workload
 * Add Reference Workload Unit Test

Change-Id: If2848e7dde4248566b99d91726d08143c40ff80d
diff --git a/src/backends/reference/RefLayerSupport.hpp b/src/backends/reference/RefLayerSupport.hpp
index 9dc64cb..399f7b5 100644
--- a/src/backends/reference/RefLayerSupport.hpp
+++ b/src/backends/reference/RefLayerSupport.hpp
@@ -71,6 +71,11 @@
                              const TensorInfo& output,
                              Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const override;
 
+    bool IsEqualSupported(const TensorInfo& input0,
+                          const TensorInfo& input1,
+                          const TensorInfo& output,
+                          Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const override;
+
     bool IsFakeQuantizationSupported(const TensorInfo& input,
                                      const FakeQuantizationDescriptor& descriptor,
                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const override;