[ros mockup] better mock-up nodes, based on classes

spring-mock-ws/src/activityreco/CMakeLists.txt

spring-mock-ws/src/activityreco/src/main.cpp

spring-mock-ws/src/asr/CMakeLists.txt

spring-mock-ws/src/asr/src/main.cpp

spring-mock-ws/src/body2dpose/CMakeLists.txt

spring-mock-ws/src/body2dpose/package.xml

spring-mock-ws/src/body2dpose/src/main.cpp

spring-mock-ws/src/demographics/CMakeLists.txt

spring-mock-ws/src/demographics/package.xml

spring-mock-ws/src/demographics/src/main.cpp

spring-mock-ws/src/dialoguemanager/CMakeLists.txt

spring-mock-ws/src/dialoguemanager/src/main.cpp

spring-mock-ws/src/facedetection/CMakeLists.txt

spring-mock-ws/src/facedetection/package.xml

spring-mock-ws/src/facedetection/src/main.cpp

spring-mock-ws/src/facerecognition/CMakeLists.txt

spring-mock-ws/src/facerecognition/package.xml

spring-mock-ws/src/facerecognition/src/main.cpp

spring-mock-ws/src/fformation/CMakeLists.txt

spring-mock-ws/src/fformation/package.xml