MLCE-1092 Added layerNames to opaque delegate

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

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: Iadcc21646d0b6fcc2c524d6239211ad3af6b6577
diff --git a/delegate/opaque/src/LogicalBinary.hpp b/delegate/opaque/src/LogicalBinary.hpp
index 44a443b..3bac72b 100644
--- a/delegate/opaque/src/LogicalBinary.hpp
+++ b/delegate/opaque/src/LogicalBinary.hpp
@@ -119,7 +119,9 @@
         return isSupported ? kTfLiteOk : kTfLiteError;
     }
 
-    armnn::IConnectableLayer* logicalBinaryLayer = delegateData.m_Network->AddLogicalBinaryLayer(desc);
+    auto layerName = GetName(desc.m_Operation, nodeIndex);
+    armnn::IConnectableLayer* logicalBinaryLayer = delegateData.m_Network->AddLogicalBinaryLayer(desc,
+                                                                                                 layerName.c_str());
     logicalBinaryLayer->SetBackendId(setBackend);
     ARMNN_ASSERT(logicalBinaryLayer != nullptr);
 
@@ -129,7 +131,8 @@
     auto inputsTensorsProcess = ProcessInputs(logicalBinaryLayer,
                                               delegateData,
                                               tfLiteContext,
-                                              tfLiteNode);
+                                              tfLiteNode,
+                                              nodeIndex);
     if (inputsTensorsProcess == kTfLiteError)
     {
         return inputsTensorsProcess;