Merge branch 'feature/gui' into 'master'

CMakeLists.txt

applications/gui/CMakeLists.txt

applications/gui/src/ctrl_window.cpp

applications/gui/src/ctrl_window.hpp

applications/gui/src/main.cpp

applications/gui/src/src_window.cpp

applications/gui/src/src_window.hpp

applications/reconstruct/src/main.cpp

applications/vision/src/main.cpp

components/common/cpp/include/ftl/config.h.in

components/common/cpp/include/ftl/configurable.hpp

components/common/cpp/include/ftl/configuration.hpp

components/common/cpp/include/loguru.hpp

components/common/cpp/src/configurable.cpp

components/common/cpp/src/configuration.cpp

components/control/cpp/include/ftl/master.hpp

components/control/cpp/include/ftl/slave.hpp

components/control/cpp/src/master.cpp

components/control/cpp/src/slave.cpp

components/net/cpp/include/ftl/net/peer.hpp