Menu & UI: [#25, #35]Communication between these tasks.

* The code is a mess for now. I'm not sure if there is any reason to
send a whole event to UI, it's better to send InterfaceWithData.
* Sending to queue from Menu isn't great as well.

source/shoh/src/threads/user_interface/UserInterface.cpp

@@ -32,7 +32,7 @@ void UserInterface::taskFunction()
 
 	for (;;)
 	{
-		this->_qm->receive(ThreadCommon::QueueManager::ui_event_manager, &data, portMAX_DELAY);
+		this->_qm->receive<Event>(ThreadCommon::QueueManager::ui_event_manager, &data, portMAX_DELAY);
 		//Don't mind the type, we care only about the raw_data.
 		EventRawData ed = data.getDataOf(Event::NotifyUI);
 		if(ed != ERROR_RETURN)

source/shoh/src/threads/user_interface/UserInterface.h

@@ -23,7 +23,7 @@ public:
 
 	union InterfaceData
 	{
-		char str[64];
+		const char str[64];
 	};
 
 	struct InterfaceWithData