[pre-commit] Add pre-commit and makes it happy.

.github/workflows/ci_ubuntu20_04_foxy_ros2.yml

.gitignore

.pre-commit-config.yaml

CMakeLists.txt

doc/Doxyfile.extra.in

...de/dynamic_graph_bridge/ros_python_interpreter_client.hpp

include/dynamic_graph_bridge/sot_loader.hh

include/dynamic_graph_bridge/sot_loader_basic.hh

src/ros.cpp

src/ros_parameter.cpp

src/sot_loader.cpp

tests/impl_test_sot_external_interface.hh

tests/test_sot_loader.cpp

travis_custom/Dockerfile