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/BatchMatMul.hpp b/delegate/classic/src/BatchMatMul.hpp
index 94b25fe..1caa354 100644
--- a/delegate/classic/src/BatchMatMul.hpp
+++ b/delegate/classic/src/BatchMatMul.hpp
@@ -90,7 +90,8 @@
             return isSupported ? kTfLiteOk : kTfLiteError;
         }
 
-        armnn::IConnectableLayer* layer = delegateData.m_Network->AddBatchMatMulLayer(descriptor);
+        auto layerName = GetLayerName(armnn::LayerType::BatchMatMul, nodeIndex);
+        armnn::IConnectableLayer* layer = delegateData.m_Network->AddBatchMatMulLayer(descriptor, layerName.c_str());
         layer->SetBackendId(setBackend);
         ARMNN_ASSERT(layer != nullptr);
 
@@ -98,7 +99,7 @@
         outputSlot.SetTensorInfo(outputTensorInfo);
 
         // 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;
         }