IVGCVSW-3469 Add front end for Quantized LSTM layer

 * Added new layer QuantizedLstm (Android Q)
 * Made necessary changes to APIs
 * Added unit tests

Change-Id: I3b9f16b0e7e49f51932cf204c87cb7118798123a
Signed-off-by: James Conroy <james.conroy@arm.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index aa462fb..c823b81 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -214,6 +214,7 @@
     include/armnn/LstmParams.hpp
     include/armnn/NetworkFwd.hpp
     include/armnn/Optional.hpp
+    include/armnn/QuantizedLstmParams.hpp
     include/armnn/Tensor.hpp
     include/armnn/TensorFwd.hpp
     include/armnn/Types.hpp
@@ -292,6 +293,8 @@
     src/armnn/layers/Pooling2dLayer.cpp
     src/armnn/layers/QuantizeLayer.cpp
     src/armnn/layers/QuantizeLayer.hpp
+    src/armnn/layers/QuantizedLstmLayer.hpp
+    src/armnn/layers/QuantizedLstmLayer.cpp
     src/armnn/layers/DivisionLayer.cpp
     src/armnn/layers/DivisionLayer.hpp
     src/armnn/layers/PreCompiledLayer.hpp