IVGCVSW-6497: BatchMatMul TfLite Parser

  * Added armnnTfLiteParser for BatchMatMul
  * Added unit testing for parser
  * Updated CMakeLists

Signed-off-by: Samuel Yap <samuel.yap@arm.com>
Change-Id: If6842aaf7cf08f688093b714e2ecea6e8cd87161
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e4818d..14236c7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -660,6 +660,7 @@
              src/armnnTfLiteParser/test/Addition.cpp
              src/armnnTfLiteParser/test/ArgMinMax.cpp
              src/armnnTfLiteParser/test/AvgPool2D.cpp
+             src/armnnTfLiteParser/test/BatchMatMul.cpp
              src/armnnTfLiteParser/test/BatchToSpaceND.cpp
              src/armnnTfLiteParser/test/Cast.cpp
              src/armnnTfLiteParser/test/Comparison.cpp