Add Docker Support

[vingenuity]

Hello samnyan!

Thanks for creating this awesome server and viewer! I'm currently working with one of my roommates to get a local server set up with our Project DIVA cabinet.

I recently created all of the necessary Docker files in order to run aqua-viewer in a virtualized container for my own use.

Would you be interested in me adding these Docker files to your repository?

Thanks again,
-Vince K.

[dogtopus]

I would suggest opening a PR instead of asking if it's OK to open a PR.