IVGCVSW-4906 Add front-end support for FILL operator

 * Added new fill layer
 * Added visitor tests

Signed-off-by: Ryan OShea <Ryan.OShea2@arm.com>
Change-Id: Iea677014866b4f2d514004623f59ee83f3c0eef8
Signed-off-by: Keith Davis <keith.davis@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0dc859b..92edf80 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -302,6 +302,8 @@
     src/armnn/layers/ElementwiseUnaryLayer.cpp
     src/armnn/layers/FakeQuantizationLayer.hpp
     src/armnn/layers/FakeQuantizationLayer.cpp
+    src/armnn/layers/FillLayer.hpp
+    src/armnn/layers/FillLayer.cpp
     src/armnn/layers/FloorLayer.hpp
     src/armnn/layers/FloorLayer.cpp
     src/armnn/layers/FullyConnectedLayer.hpp