IVGCVSW-5400 'TfLiteDelegate: FLOOR operator support'

* Added FLOOR operator support to Arm NN TfLiteDelegate

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I986ce8c5a825f509e0f8b3d257fd5b60834c322f
diff --git a/delegate/CMakeLists.txt b/delegate/CMakeLists.txt
index 74390c8..11bff48 100644
--- a/delegate/CMakeLists.txt
+++ b/delegate/CMakeLists.txt
@@ -149,6 +149,8 @@
         src/test/ReshapeTest.cpp
         src/test/ResizeTest.cpp
         src/test/ResizeTestHelper.hpp
+        src/test/RoundTest.cpp
+        src/test/RoundTestHelper.hpp
         src/test/SoftmaxTest.cpp
         src/test/SoftmaxTestHelper.hpp
         src/test/SpaceDepthTest.cpp