Installation script for linux

[Chewt]

I found that this project is pretty convoluted to install, so I made a script to help install it. It will download the latest release of ogatak, check for a katago installation, download katrain's analysis_config.cgf file linked in your readme, and set up the ogatak config file to point to all of these things. It will also install ogatak to /opt/ogatak and create a symlink in /usr/bin/ogatak as well as create a .desktop file to easily run ogatak with a command runner like dmenu or rofi.

Feel free to look through the install script in this gist I made.
https://gist.github.com/Chewt/eab8f68355343a3020d0d72c9c32d911

Creating an issue for this seems a little bit weird, but there is no other place for discussion that I can see, so I figure that I would put it here and maybe someone can benefit from it.

[rooklift]

Thanks. I'm not qualified to assess such a thing for safety, but I'm happy to leave it here.