IVGCVSW-7828 Add an Optional TensorInfo to InputSlot

 * Updated calls to use the new function
   From:
   GetInputSlot(n).GetConnection()->GetTensorInfo();
   To:
   GetInputSlot(n).GetTensorInfo();
 * Added UnitTests

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: I43184cc05e4472011b9347aaa820eb8deb1cd4a0
diff --git a/Android.mk b/Android.mk
index 884624e..dd8f262 100644
--- a/Android.mk
+++ b/Android.mk
@@ -436,6 +436,7 @@
         src/armnn/test/GraphTests.cpp \
         src/armnn/test/InferOutputTests.cpp \
         src/armnn/test/InstrumentTests.cpp \
+        src/armnn/test/LayerTests.cpp \
         src/armnnUtils/ModelAccuracyChecker.cpp \
         src/armnn/test/ModelAccuracyCheckerTest.cpp \
         src/armnn/test/NetworkTests.cpp \