FlightTasks: rename libs to use CamelCase convention

src/lib/FlightTasks/CMakeLists.txt

src/lib/FlightTasks/tasks/Auto/CMakeLists.txt

src/lib/FlightTasks/tasks/AutoFollowMe/CMakeLists.txt

src/lib/FlightTasks/tasks/AutoLine/CMakeLists.txt

src/lib/FlightTasks/tasks/CMakeLists.txt

src/lib/FlightTasks/tasks/Manual/CMakeLists.txt

src/lib/FlightTasks/tasks/ManualAltitude/CMakeLists.txt

...lib/FlightTasks/tasks/ManualAltitudeSmooth/CMakeLists.txt

src/lib/FlightTasks/tasks/ManualPosition/CMakeLists.txt

...lib/FlightTasks/tasks/ManualPositionSmooth/CMakeLists.txt

src/lib/FlightTasks/tasks/ManualStabilized/CMakeLists.txt

src/lib/FlightTasks/tasks/Offboard/CMakeLists.txt

src/lib/FlightTasks/tasks/Orbit/CMakeLists.txt

src/lib/FlightTasks/tasks/Utility/CMakeLists.txt

src/modules/mc_pos_control/CMakeLists.txt