Support "export ... from"

[benmccann]

Is your feature request related to a problem? Please describe.
It is currently a bit verbose to use svelte with bundler file handlers like @rollup/plugin-url and Webpack file-loader

Describe the solution you'd like
I would like to be able to do:

export { default as successkid } from './successkid.jpg';

If I try this today I am told:

A component currently cannot have an export ... from

Describe alternatives you've considered
Right now I need to do:

import successkidJpg from './successkid.jpg';
export let successkid = successkidJpg;

How important is this feature to you?
It would make Svelte more joyful to work with. I have a workaround, but the current syntax is rather tedious

Additional context
There are lots of people wanting better static file handling in Sapper and this is a part of that

• https://github.com/sveltejs/sapper/issues/951
• Feature request: custom cache-control headers sapper#567
• service worker: static files hashes sapper#527
• Cache busting with url versioning params sapper#179

[pngwn]

Duplicate of #2214

[benmccann]

Adding an update here in case anyone finds this closed ticket. I don't actually need to do export at all