IVGCVSW-3353 Add CL support and tests for SpaceToDepth

 * Added CL backend support for SpaceToDepth.
 * Enabled unit tests for SpaceToDepth on CL.
 * Renamed unit tests to make them type-agnostic.
 * Added QSymm16/S16 support to ClTensorHandle.

Signed-off-by: James Conroy <james.conroy@arm.com>
Change-Id: I417d82946142ed619c447428bf0b0c4a2116c004
diff --git a/src/backends/cl/ClWorkloadFactory.hpp b/src/backends/cl/ClWorkloadFactory.hpp
index 5448504..3b0ac82 100644
--- a/src/backends/cl/ClWorkloadFactory.hpp
+++ b/src/backends/cl/ClWorkloadFactory.hpp
@@ -179,6 +179,9 @@
     std::unique_ptr<IWorkload> CreateTransposeConvolution2d(const TransposeConvolution2dQueueDescriptor& descriptor,
                                                             const WorkloadInfo& info) const override;
 
+    std::unique_ptr<IWorkload> CreateSpaceToDepth(const SpaceToDepthQueueDescriptor& descriptor,
+                                                  const WorkloadInfo& info) const override;
+
 private:
     template<typename FloatWorkload, typename Uint8Workload, typename QueueDescriptorType, typename... Args>
     static std::unique_ptr<IWorkload> MakeWorkload(const QueueDescriptorType& descriptor,