COMPMID-1716: CL Comparison operations

Adds support for Equal,NotEqual,Less,LessEqual,Greater,GreaterEqual

Change-Id: If0cdf4aae7f95c94709b195eee485f6663f45909
diff --git a/arm_compute/runtime/CL/CLFunctions.h b/arm_compute/runtime/CL/CLFunctions.h
index b00270c..d9b29ff 100644
--- a/arm_compute/runtime/CL/CLFunctions.h
+++ b/arm_compute/runtime/CL/CLFunctions.h
@@ -45,6 +45,7 @@
 #include "arm_compute/runtime/CL/functions/CLChannelExtract.h"
 #include "arm_compute/runtime/CL/functions/CLChannelShuffleLayer.h"
 #include "arm_compute/runtime/CL/functions/CLColorConvert.h"
+#include "arm_compute/runtime/CL/functions/CLComparison.h"
 #include "arm_compute/runtime/CL/functions/CLComputeAllAnchors.h"
 #include "arm_compute/runtime/CL/functions/CLConcatenateLayer.h"
 #include "arm_compute/runtime/CL/functions/CLConvertFullyConnectedWeights.h"