added SpeechObserver and DummyTextToSpeech

data/RobotAPI/VariantInfo-RobotAPI.xml

scenarios/SpeechObserver/SpeechObserver.scx

scenarios/SpeechObserver/config/ConditionHandler.cfg

scenarios/SpeechObserver/config/DummyTextToSpeechApp.cfg

scenarios/SpeechObserver/config/SpeechObserverApp.cfg

scenarios/SpeechObserver/config/SystemObserver.cfg

scenarios/SpeechObserver/config/global.cfg

source/RobotAPI/applications/CMakeLists.txt

...ce/RobotAPI/applications/DummyTextToSpeech/CMakeLists.txt

source/RobotAPI/applications/DummyTextToSpeech/main.cpp

source/RobotAPI/applications/SpeechObserver/CMakeLists.txt

source/RobotAPI/applications/SpeechObserver/main.cpp

source/RobotAPI/components/CMakeLists.txt

source/RobotAPI/components/DummyTextToSpeech/CMakeLists.txt

...botAPI/components/DummyTextToSpeech/DummyTextToSpeech.cpp

...RobotAPI/components/DummyTextToSpeech/DummyTextToSpeech.h

...RobotAPI/components/DummyTextToSpeech/test/CMakeLists.txt

...mponents/DummyTextToSpeech/test/DummyTextToSpeechTest.cpp

source/RobotAPI/components/units/CMakeLists.txt

source/RobotAPI/components/units/SpeechObserver.cpp