Rewrite

Overview

Mangadex-dl had serious problems related to the inability to download chapters with the same number separately and some others troubles.
This PR almost completely rewrites the code. In the new version:

1. Download chapters based on volume number;
2. Specify what to do with duplicate chapters;
3. Archive separately the entire manga, volumes and chapters;
4. Possibility work in non-interactive mode, through command line parameters and pipes;
5. Removed dependence on third-party libraries. Only standard library;
6. New optional flags;

Resolves #31, resolves #35

See README for more information.

Testing

I tested the program on OS Windows with Python 3.10.2. Some notable tested manga titles:

• Shingeki no Kyojin - Oneshot, a lot of duplicated chapters.
• Touhou - Ku-sou Mangekyou - Invalid symbol : in title (Windows).
• Azur Lane Comic Anthology - Each volume start from chapter 1.
• Seitokai Yakuindomo - 600+ chapters. Somewhat messy list view but ok.

Current limitation

1. You cannot continue the download at the point where it was stopped.