IVGCVSW-2291 TILE Operator CL Implementation

 * Added Tile Operator Implementation to CL
 * Added calls to the existing UnitTests
 * Added Documentation

Signed-off-by: Cian McGriskin <cian.mcgriskin@arm.com>
Change-Id: If7d25c7aa669c24e7816e5d445c7a3b9ce6972d4
diff --git a/src/backends/cl/workloads/CMakeLists.txt b/src/backends/cl/workloads/CMakeLists.txt
index 030d719..cb16ab1 100644
--- a/src/backends/cl/workloads/CMakeLists.txt
+++ b/src/backends/cl/workloads/CMakeLists.txt
@@ -131,6 +131,8 @@
     ClStridedSliceWorkload.hpp
     ClSubtractionWorkload.cpp
     ClSubtractionWorkload.hpp
+    ClTileWorkload.cpp
+    ClTileWorkload.hpp
     ClTransposeConvolution2dWorkload.cpp
     ClTransposeConvolution2dWorkload.hpp
     ClTransposeWorkload.cpp