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/Split.hpp b/delegate/opaque/src/Split.hpp
index d3d00e4..aec0fb6 100644
--- a/delegate/opaque/src/Split.hpp
+++ b/delegate/opaque/src/Split.hpp
@@ -157,7 +157,8 @@
         return isSupported ? kTfLiteOk : kTfLiteError;
     }
 
-    armnn::IConnectableLayer* layer = delegateData.m_Network->AddSplitterLayer(splitDescriptor);
+    auto layerName = GetName(armnn::LayerType::Splitter, nodeIndex);
+    armnn::IConnectableLayer* layer = delegateData.m_Network->AddSplitterLayer(splitDescriptor, layerName.c_str());
     layer->SetBackendId(setBackend);
     ARMNN_ASSERT(layer != nullptr);
 
@@ -391,7 +392,8 @@
         return isSupported ? kTfLiteOk : kTfLiteError;
     }
 
-    armnn::IConnectableLayer* layer = delegateData.m_Network->AddSplitterLayer(splitDescriptor);
+    auto layerName = GetName(armnn::LayerType::Splitter, nodeIndex);
+    armnn::IConnectableLayer* layer = delegateData.m_Network->AddSplitterLayer(splitDescriptor, layerName.c_str());
     layer->SetBackendId(setBackend);
     ARMNN_ASSERT(layer != nullptr);
 
@@ -401,7 +403,7 @@
     }
 
     // try to connect the Constant Inputs if there are any
-    if(ProcessInputs(layer,delegateData, tfLiteContext, tfLiteNode) != kTfLiteOk )
+    if (ProcessInputs(layer, delegateData, tfLiteContext, tfLiteNode, nodeIndex) != kTfLiteOk)
     {
         return kTfLiteError;
     }