Setup Chronovisor project

I setup the basic project structure; I have a folder for the flutter app, and one for the package to handle all the archive details. This did not take that long, so I also prepared the archive_handeling package to have archive as a dependency, and setup basic loading of a zip file.

Note: the time for this devlog is too high; I didn’t see the project show up of Hackatime at first, and so spent some time messing with the files trying to get it to show up, which inflated the time quite a bit. Oops.