add a self testing trigger to the walk path planner (should eventually become a unit test)
make walkplanner compile
Merge branch 'develop' of https://github.com/nubots/NUClearPort into develop
Changes:
- added a trigger for testing via nubugger localisation visualisation (disabled by default, should be moved to another module)
- fixed distance hystereses in generateWalk
- fixed final approach direction in approachFromDirection (was flipped 180 degrees)
- commented out Jake's planner (the two can be switched easily in code)