IVGCVSW-3539 Add Neon support and tests for Stack

* Added Neon backend support for Stack
* Added unit tests for Stack on the Neon backend

Signed-off-by: Matthew Jackson <matthew.jackson@arm.com>
Change-Id: I21379966a6303285f8b65418d0d4ac7982cc9f04
diff --git a/src/backends/neon/workloads/CMakeLists.txt b/src/backends/neon/workloads/CMakeLists.txt
index 7bde808..dea0228 100644
--- a/src/backends/neon/workloads/CMakeLists.txt
+++ b/src/backends/neon/workloads/CMakeLists.txt
@@ -68,6 +68,8 @@
     NeonSpaceToDepthWorkload.hpp
     NeonSplitterWorkload.cpp
     NeonSplitterWorkload.hpp
+    NeonStackWorkload.cpp
+    NeonStackWorkload.hpp
     NeonSubtractionWorkload.cpp
     NeonSubtractionWorkload.hpp
     NeonWorkloads.hpp