COMPMID-3381: Implement graph example for YoLo v3 output detector

Add sub/exp/splitv support in graph api

Signed-off-by: Sheri Zhang <sheri.zhang@arm.com>
Change-Id: I4e08cc19a46655717068b12c93d67e619a595d9a
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3309
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/graph/Types.h b/arm_compute/graph/Types.h
index 296f757..4220692 100644
--- a/arm_compute/graph/Types.h
+++ b/arm_compute/graph/Types.h
@@ -103,7 +103,13 @@
 {
     Add, /**< Arithmetic addition */
     Sub, /**< Arithmetic subtraction */
-    Mul  /**< Arithmetic multiplication */
+    Mul, /**< Arithmetic multiplication */
+};
+
+/** Supported Unary Element-wise operations */
+enum class UnaryEltwiseOperation
+{
+    Exp /**< Exp */
 };
 
 /** Supported Convolution layer methods */
@@ -168,6 +174,7 @@
     SplitLayer,
     StackLayer,
     UpsampleLayer,
+    UnaryEltwiseLayer,
     YOLOLayer,
 
     Input,