IVGCVSW-5300 Remove some boost::numeric_cast from armnn/backends

 * Replaced with armnn/utility/NumericCast.hpp
 * Some exclusions in reference backend
 * Excluded as requires float implementation in NumericCast.hpp

Signed-off-by: Matthew Sloyan <matthew.sloyan@arm.com>
Change-Id: I9e4e9cd502c865452128fa04415fd6f250baa855
diff --git a/src/backends/backendsCommon/test/ElementwiseUnaryEndToEndTestImpl.hpp b/src/backends/backendsCommon/test/ElementwiseUnaryEndToEndTestImpl.hpp
index 4c93735..5fedaa2 100644
--- a/src/backends/backendsCommon/test/ElementwiseUnaryEndToEndTestImpl.hpp
+++ b/src/backends/backendsCommon/test/ElementwiseUnaryEndToEndTestImpl.hpp
@@ -10,6 +10,8 @@
 
 #include <armnn/INetwork.hpp>
 
+#include <armnn/utility/NumericCast.hpp>
+
 #include <boost/test/unit_test.hpp>
 
 #include <vector>
@@ -32,7 +34,7 @@
     IConnectableLayer* elementwiseUnaryLayer = net->AddElementwiseUnaryLayer(descriptor, "elementwiseUnary");
 
     TensorInfo inputTensorInfo(inputShape, ArmnnTypeInput, qScale, qOffset);
-    IConnectableLayer* input = net->AddInputLayer(boost::numeric_cast<LayerBindingId>(0));
+    IConnectableLayer* input = net->AddInputLayer(armnn::numeric_cast<LayerBindingId>(0));
     Connect(input, elementwiseUnaryLayer, inputTensorInfo, 0, 0);
 
     TensorInfo outputTensorInfo(outputShape, ArmnnTypeInput, qScale, qOffset);