MLCE-1092 Added layerNames to classic delegate

 * All layers added through the classic delegate will have a name that
   includes the nodeIndex from the tflite model.
 * Added utilities to ClassicDelegateUtils to get the names for the layers.

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: Iac567486d1f91c0a99b77ed8963f6b6ca26b0b59
diff --git a/delegate/classic/src/Pad.hpp b/delegate/classic/src/Pad.hpp
index 440a3d0..f8e8014 100644
--- a/delegate/classic/src/Pad.hpp
+++ b/delegate/classic/src/Pad.hpp
@@ -166,7 +166,8 @@
         return isSupported ? kTfLiteOk : kTfLiteError;
     }
 
-    armnn::IConnectableLayer* padLayer = delegateData.m_Network->AddPadLayer(descriptor);
+    auto layerName = GetLayerName(armnn::LayerType::Pad, nodeIndex);
+    armnn::IConnectableLayer* padLayer = delegateData.m_Network->AddPadLayer(descriptor, layerName.c_str());
     padLayer->SetBackendId(setBackend);
     ARMNN_ASSERT(padLayer != nullptr);