Camera costume upload functionality. Needs UI and code cleanup.

src/components/camera-modal/camera-modal.css

src/components/camera-modal/camera-modal.jsx

src/components/camera-modal/icon--back.svg

src/containers/camera-modal.jsx

src/containers/costume-tab.jsx

src/containers/stage.jsx

src/lib/camera.js

src/lib/file-uploader.js

src/reducers/modals.js