IVGCVSW-2844: Add TfLite Parser support for Split layer

* Added ParseSplit method
* New Unit test Split.cpp
* Updated TensorflowLiteSupport.md with new supported operator

Change-Id: Iec80ba9ad7b48db8e86589ebae77bd7d8ed38fb2
Signed-off-by: Nina Drozd <nina.drozd@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b297423..162b509 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -516,9 +516,10 @@
              src/armnnTfLiteParser/test/ResizeBilinear.cpp
              src/armnnTfLiteParser/test/Softmax.cpp
              src/armnnTfLiteParser/test/SpaceToBatchND.cpp
-             src/armnnTfLiteParser/test/Sub.cpp
+             src/armnnTfLiteParser/test/Split.cpp
              src/armnnTfLiteParser/test/Squeeze.cpp
              src/armnnTfLiteParser/test/StridedSlice.cpp
+             src/armnnTfLiteParser/test/Sub.cpp
              src/armnnTfLiteParser/test/LoadModel.cpp
              src/armnnTfLiteParser/test/GetBuffer.cpp
              src/armnnTfLiteParser/test/OutputShapeOfSqueeze.cpp