Implement Operator API

Resolves: COMPMID-4512

Signed-off-by: Georgios Pinitas <georgios.pinitas@arm.com>
Change-Id: Id12130365fa3fe2261160931dcc7affb6b467186
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6031
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/common/Types.h b/src/common/Types.h
index ba07b51..25ee323 100644
--- a/src/common/Types.h
+++ b/src/common/Types.h
@@ -24,6 +24,7 @@
 #ifndef SRC_COMMON_TYPES_H_
 #define SRC_COMMON_TYPES_H_
 
+#include "arm_compute/AclDescriptors.h"
 #include "arm_compute/AclTypes.h"
 
 namespace arm_compute