IVGCVSW-3993 Add frontend and reference workload for ComparisonLayer

* Added frontend for ComparisonLayer
* Added RefComparisonWorkload
* Deprecated and removed Equal and Greater layers and workloads
* Updated tests to ensure backward compatibility

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: Id50c880be1b567c531efff919c0c366d0a71cbe9
diff --git a/include/armnn/ILayerSupport.hpp b/include/armnn/ILayerSupport.hpp
index 31b5e13..87197ee 100644
--- a/include/armnn/ILayerSupport.hpp
+++ b/include/armnn/ILayerSupport.hpp
@@ -61,6 +61,12 @@
                                            const BatchToSpaceNdDescriptor& descriptor,
                                            Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
 
+    virtual bool IsComparisonSupported(const TensorInfo& input0,
+                                       const TensorInfo& input1,
+                                       const TensorInfo& output,
+                                       const ComparisonDescriptor& descriptor,
+                                       Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
+
     virtual bool IsConcatSupported(const std::vector<const TensorInfo*> inputs,
                                    const TensorInfo& output,
                                    const OriginsDescriptor& descriptor,
@@ -124,6 +130,7 @@
                                      const TensorInfo& output,
                                      Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
 
+    ARMNN_DEPRECATED_MSG("Use IsComparisonSupported instead")
     virtual bool IsEqualSupported(const TensorInfo& input0,
                                   const TensorInfo& input1,
                                   const TensorInfo& output,
@@ -149,6 +156,7 @@
                                    const TensorInfo& output,
                                    Optional<std::string&> reasonIfUnsupported = EmptyOptional()) const = 0;
 
+    ARMNN_DEPRECATED_MSG("Use IsComparisonSupported instead")
     virtual bool IsGreaterSupported(const TensorInfo& input0,
                                     const TensorInfo& input1,
                                     const TensorInfo& ouput,