IVGCVSW-8230 Add ScatterNd to Serializer and Deserializer

* Added parsing functions to the serializer and deserializer
* Added ScatterNd and its Descriptor to the ArmnnSchema.fbs
* Added Unittest for Serializer and Deserializer

Signed-off-by: Kevin May <kevin.may@arm.com>
Change-Id: I1ed674dc32d2e2d0d84dca4c7018984ea367ea50
diff --git a/docs/05_06_deserializer.dox b/docs/05_06_deserializer.dox
index bf44dbf..6f5dcf4 100644
--- a/docs/05_06_deserializer.dox
+++ b/docs/05_06_deserializer.dox
@@ -118,6 +118,8 @@
 
 - ReverseV2
 
+- ScatterNd
+
 - Slice
 
 - Softmax