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/include/armnn/LayerVisitorBase.hpp b/include/armnn/LayerVisitorBase.hpp
index 95d6bd3..0dc5e54 100644
--- a/include/armnn/LayerVisitorBase.hpp
+++ b/include/armnn/LayerVisitorBase.hpp
@@ -101,6 +101,10 @@
     void VisitEqualLayer(const IConnectableLayer*,
                          const char*) override { DefaultPolicy::Apply(__func__); }
 
+    void VisitFillLayer(const IConnectableLayer*,
+                        const FillDescriptor&,
+                        const char*) override { DefaultPolicy::Apply(__func__); }
+
     void VisitFloorLayer(const IConnectableLayer*,
                          const char*) override { DefaultPolicy::Apply(__func__); }