Merge pull request #658 from mozilla/cleanup/userinput

src/components/action-to-event.js

src/components/camera-tool.js

src/components/character-controller.js

src/components/cursor-controller.js

src/components/hand-controls2.js

src/components/pinch-to-move.js

src/components/pitch-yaw-rotator.js

src/components/super-networked-interactable.js

src/components/super-spawner.js

src/components/tools/pen.js

src/systems/userinput/resolve-action-sets.js

src/systems/userinput/userinput.js

src/systems/userinput/userinput.md