change feature name from CollisionAvoidance to CollisionPrevention

src/lib/CMakeLists.txt

src/lib/CollisionPrevention/CMakeLists.txt

src/lib/CollisionPrevention/CollisionPrevention.cpp

src/lib/CollisionPrevention/CollisionPrevention.hpp

...htTasks/tasks/ManualPosition/FlightTaskManualPosition.cpp

...htTasks/tasks/ManualPosition/FlightTaskManualPosition.hpp

src/modules/mc_pos_control/CMakeLists.txt

src/modules/mc_pos_control/mc_pos_control_params.c