IVGCVSW-1955: Unify backend exceptions (wrap cl::Error)

* Added wrapper function around arm_compute::IFunction::run() that catches
  cl::Error and wraps it into an armnn::RuntimeException
* Added MakeWorkload template inside ClWorkloadFactory that catches
  cl::Error and wraps it into an armnn::RuntimeException
* Replaced cl::Error with armnn::RuntimeException in catch statements inside
  LoadedNetwork

Change-Id: I2340f41ae02b8db1d7ef5157824a50e7410854e3
diff --git a/src/backends/cl/workloads/ClFullyConnectedWorkload.cpp b/src/backends/cl/workloads/ClFullyConnectedWorkload.cpp
index b3a97f3..7b2ecf0 100644
--- a/src/backends/cl/workloads/ClFullyConnectedWorkload.cpp
+++ b/src/backends/cl/workloads/ClFullyConnectedWorkload.cpp
@@ -84,7 +84,7 @@
 void ClFullyConnectedWorkload::Execute() const
 {
     ARMNN_SCOPED_PROFILING_EVENT_CL("ClFullyConnectedWorkload_Execute");
-    m_FullyConnectedLayer.run();
+    RunClFunction(m_FullyConnectedLayer, CHECK_LOCATION());
 }
 
 void ClFullyConnectedWorkload::FreeUnusedTensors()