Deploy dev preview

[bkeepers]

The preview added in #6 should be publicly available. GH Pages would be the easiest target. Cloudflare Pages would also be an obvious choice since I'm using their storage for tiles.

[jdsails]

It would be great to see where you are at - for example I am not sure if my output (odd figures for soundings, very limited point symbology) matches yours.

[bkeepers]

@jdsails it's very rough at the moment.

1. It's currently based on an early draft of the 4.0.0 Presentation Library that was available online. I'm in the process of purchasing the latest presentation library (4.0.4) which should fix a lot of issues.
2. Almost none of the conditional symbology is implemented yet (lights, wrecks, etc).

[jdsails]

That’s the same as my output using my own unencrypted training charts.

Great work so far - understood on the presentation library.