COMPMID-2205: CL runtime context.

CL Interfaces implemented.
Concrete classes implemented.
One test (ActivationLayer) ported to the new interface.

Change-Id: I283808bec36ccfc2f13fe048c45cbbee698ce525
Signed-off-by: Pablo Tello <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1998
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/utils/Utils.cpp b/utils/Utils.cpp
index b0e162a..8cc3fcf 100644
--- a/utils/Utils.cpp
+++ b/utils/Utils.cpp
@@ -24,6 +24,7 @@
 #include "Utils.h"
 
 #ifdef ARM_COMPUTE_CL
+#include "arm_compute/core/CL/CLKernelLibrary.h"
 #include "arm_compute/runtime/CL/CLScheduler.h"
 #endif /* ARM_COMPUTE_CL */