implement multi-platform support

[Anavros]

Initially, I only want to get it to run normally in the console, with normal python3 environments; but later on, I want to be able to create a standalone executable in its own window. We would need to find a way to get the program to run without using the python interpreter--purely because some users may not have or want to download python--which I believe is possible. I know the default console on windows is a big pain as well and I would like to provide an option to not use that. I'm imagining a separate, larger version of malt, maybe called gmalt, that provides the same api, but in a small window instead.