IVGCVSW-5787 Add/Update Execute() implementations in RefActivationWorkload

 * Added multithreaded StridedSliceEndToEndTest

Signed-off-by: Finn Williams <Finn.Williams@arm.com>
Change-Id: I4579db7b5959e0a22256f1bda00238c22e611dec
diff --git a/src/backends/reference/workloads/RefBatchToSpaceNdWorkload.cpp b/src/backends/reference/workloads/RefBatchToSpaceNdWorkload.cpp
index c21ef76..441d2ba 100644
--- a/src/backends/reference/workloads/RefBatchToSpaceNdWorkload.cpp
+++ b/src/backends/reference/workloads/RefBatchToSpaceNdWorkload.cpp
@@ -13,13 +13,23 @@
 
 void RefBatchToSpaceNdWorkload::Execute() const
 {
+    Execute(m_Data.m_Inputs, m_Data.m_Outputs);
+}
+
+void RefBatchToSpaceNdWorkload::ExecuteAsync(WorkingMemDescriptor &workingMemDescriptor)
+{
+    Execute(workingMemDescriptor.m_Inputs, workingMemDescriptor.m_Outputs);
+}
+
+void RefBatchToSpaceNdWorkload::Execute(std::vector<ITensorHandle*> inputs, std::vector<ITensorHandle*> outputs) const
+{
     ARMNN_SCOPED_PROFILING_EVENT(Compute::CpuRef, "RefBatchToSpaceNdWorkload_Execute");
 
-    const TensorInfo& inputInfo = GetTensorInfo(m_Data.m_Inputs[0]);
-    const TensorInfo& outputInfo = GetTensorInfo(m_Data.m_Outputs[0]);
+    const TensorInfo& inputInfo = GetTensorInfo(inputs[0]);
+    const TensorInfo& outputInfo = GetTensorInfo(outputs[0]);
 
-    std::unique_ptr<Decoder<float>> inputDecoder  = MakeDecoder<float>(inputInfo, m_Data.m_Inputs[0]->Map());
-    std::unique_ptr<Encoder<float>> outputEncoder = MakeEncoder<float>(outputInfo, m_Data.m_Outputs[0]->Map());
+    std::unique_ptr<Decoder<float>> inputDecoder  = MakeDecoder<float>(inputInfo, inputs[0]->Map());
+    std::unique_ptr<Encoder<float>> outputEncoder = MakeEncoder<float>(outputInfo, outputs[0]->Map());
 
     BatchToSpaceNd(m_Data.m_Parameters.m_DataLayout, inputInfo, outputInfo, m_Data.m_Parameters.m_BlockShape,
                    m_Data.m_Parameters.m_Crops, *inputDecoder, *outputEncoder);