Add full APWorld support

[Silvris]

• Removes the tkinter dialog in favor of accessing the "StyxScribe.py" path from host.yaml.
• Loads StyxScribe using importlib instead of chdir, some hacky subsume path changes included
• Renames the client title to "Archipelago Hades Client"
• Moves the client into the world folder, with HadesClient.py calling into the world folder