Add drake/util/scan_subdirectory_order.py

[jwnimmer-tri]

This is related to #1987 -- just a manual list of directories for now, in cases where we want to manually work in dependency order (e.g., warning killing).

---

This change is

[jwnimmer-tri]

@david-german-tri Curious at some point to hear if you think this PR is worth it.

Current output:

jwnimmer@call:~/jwnimmer-tri/drake-distro$ drake/util/scan_subdirectory_order.py
error: could not find ./examples/${child}
error: could not find ./doc/textbook
.
./common
./common/test
./core
./core/test
./util
./util/test
./util/yaml
./util/geometry/test
./solvers
./solvers/qpSpline
./solvers/qpSpline/test
./solvers/test
./solvers/+drakeFunction
./solvers/+drakeFunction/+euclidean/+test
./solvers/+drakeFunction/+geometry/+test
./solvers/+drakeFunction/+kinematic/+test
./solvers/+drakeFunction/+test
./solvers/BMI
./solvers/BMI/kinematics/test
./solvers/BMI/util/test
./solvers/BMI/test
./solvers/trajectoryOptimization/test
./systems
./systems/frames
./systems/frames/test
./systems/framework
./systems/framework/test
./systems/framework/primitives/test
./systems/plants
./systems/plants/shapes
./systems/plants/collision
./systems/plants/collision/test
./systems/plants/constraint
./systems/plants/constraint/test
./systems/plants/joints
./systems/plants/joints/test
./systems/plants/test
./systems/trajectories
./systems/trajectories/test
./systems/controllers
./systems/controllers/test
./systems/robotInterfaces
./systems/robotInterfaces/@QPLocomotionPlanCPPWrapper
./systems/robotInterfaces/@QPLocomotionPlanCPPWrapper/private
./systems/robotInterfaces/calibration/test
./systems/robotInterfaces/test
./systems/test
./thirdParty/GetFullPath
./thirdParty/spruce
./thirdParty/spruce/src
./thirdParty/tinyxml2
./examples
./examples/SimpleFourBar
./examples/Glider
./examples/Glider/test
./examples/Wingeron
./examples/FurutaPendulum
./examples/Quadrotor2D
./examples/@VanDerPolCpp
./examples/Airplane2D
./examples/Airplane2D/test
./examples/dev
./examples/test
./examples/TwoWheeledInvertedPendulum
./examples/TwoWheeledInvertedPendulum/test
./examples/kuka_iiwa_arm
./examples/SpringLoadedInvertedPendulum
./examples/PlanarNLink
./examples/PlanarNLink/test
./examples/Strandbeest
./examples/PlanarMonopodHopper
./examples/Atlas
./examples/Atlas/test
./examples/Quadrotor
./examples/Quadrotor/test
./examples/Quadrotor/crazyflie
./examples/Acrobot
./examples/Acrobot/@AcrobotPlantCpp
./examples/Acrobot/test
./examples/Pendulum
./examples/Pendulum/test
./examples/spring_mass
./examples/spring_mass/test
./examples/UnderwaterAcrobot
./examples/UnderwaterAcrobot/test
./examples/ZMP
./examples/ZMP/test
./examples/grasping
./examples/grasping/forceClosure/test
./examples/Valkyrie
./examples/Valkyrie/test
./examples/SimpleDoublePendulum
./examples/HolonomicDrive
./examples/CompassGait
./examples/CompassGait/test
./examples/DubinsCar
./examples/DubinsCar/test
./examples/IRB140
./examples/CartPole
./examples/CartPole/test
./examples/Cars
./examples/Cars/test
./examples/SimplePulleys
./examples/PR2
./examples/KneedCompassGait
./examples/BouncingBall
./examples/RimlessWheel
./examples/RimlessWheel/test
./bindings
./bindings/swig
./bindings/python
./bindings/matlab/test
./ros
./ros/test
./doc

[david-german-tri]

I believe this is superseded by #1987 (comment)