Emoji routes

The route of the emoji images: one image of the emoji index folder, so that the live preview draws the emoji layers of a style with the images of the burn.

Source file: captionbob_server/emoji_routes.js

GET /api/emoji-image

Access: any. A route that a dashboard login or an API key may call.

GET /api/emoji-image?path=<path in the emoji index folder>. One image of the emoji index folder, for the emoji layers of the preview.