add solid-js example

## Summary - Added a solid example in the `examples/` folder. (though I have no idea how u run this from within the repo besides taking it out and running it), it's pretty tricky with tsconfig's `jsx` and `jsxImportSource` conflicting with React's as well. - I made a full-blown example here using the same files tho: http://github.com/blankeos/swapy-solid-example