Merge branch 'master' into feature_config

qpong_core/ImageBuffer.hpp

qpong_core/Particle.cpp

qpong_core/Particle.hpp

qpong_core/Player.cpp

qpong_core/Player.hpp

src/Profiler.cpp

src/Profiler.hpp

tests/CMakeLists.txt

tests/test_qpong.cpp