IVGCVSW-6382 Add Unsqueeze operator support to ONNX parser

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: Ie0b68b08fc31444c58b0ffc9babdd456bbb51f35
diff --git a/src/armnnOnnxParser/OnnxParser.hpp b/src/armnnOnnxParser/OnnxParser.hpp
index b71b8dc..196e903 100644
--- a/src/armnnOnnxParser/OnnxParser.hpp
+++ b/src/armnnOnnxParser/OnnxParser.hpp
@@ -121,6 +121,7 @@
     void ParseMaxPool(const onnx::NodeProto& nodeProto);
     void ParseShape(const onnx::NodeProto& node);
     void ParseReshape(const onnx::NodeProto& nodeProto);
+    void ParseUnsqueeze(const onnx::NodeProto& nodeProto);
 
     void RegisterInputSlots(armnn::IConnectableLayer* layer, const std::vector<std::string>& tensorIndexes);
     void RegisterOutputSlots(armnn::IConnectableLayer* layer, const std::vector<std::string>& tensorIndexes);