Retain back-compatibility for arm_compute/core/Types.h

* Some symbols have been moved from core/Types.h. This patch retains
  back compatibility so that the user can still include this header
  for those symbols

* A new header core/CoreTypes.h is created to avoid circular dependency.
  This header includes essential small types that are used across
  functions

* Move all function info types into function_info folder for easier
  tracking

Resolves COMPMID-6330
Related to https://review.mlplatform.org/c/ml/ComputeLibrary/+/9757

Signed-off-by: SiCong Li <sicong.li@arm.com>
Change-Id: I4739175c2d4d184a9bc8e28b881b497fab03ca60
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9979
Reviewed-by: Jakub Sujak <jakub.sujak@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/runtime/CL/functions/CLActivationLayer.cpp b/src/runtime/CL/functions/CLActivationLayer.cpp
index 0bfc20d..f324b1a 100644
--- a/src/runtime/CL/functions/CLActivationLayer.cpp
+++ b/src/runtime/CL/functions/CLActivationLayer.cpp
@@ -23,10 +23,10 @@
  */
 #include "arm_compute/runtime/CL/functions/CLActivationLayer.h"
 
-#include "arm_compute/core/ActivationLayerInfo.h"
 #include "arm_compute/core/CL/ICLTensor.h"
 #include "arm_compute/core/Types.h"
 #include "arm_compute/core/Validate.h"
+#include "arm_compute/function_info/ActivationLayerInfo.h"
 #include "arm_compute/runtime/CL/CLRuntimeContext.h"
 #include "src/core/CL/ICLKernel.h"
 #include "src/gpu/cl/operators/ClActivation.h"