[Feature Request] Setup some language-specified paths

[koala784]

Is your feature request related to a problem? Please describe. I've setup Mango for some of my friends who reads manga in french, or english if not available in french.

With the MangaDex downloader, all the manga are stored in the same folder, without distinction for language.

Describe the solution you'd like It could be great to have the choice to set a french folder for the manga downloaded in MangaDex with the french language, and set another folder for the english language.

Describe a small use-case for this feature request This settings could apply to another languages (japanese/english, ...).

Additional context

Exemple of a way to do it, for the end user, in the config.yml file:

[MasoudRahmani]

+1, i'd like to have this feature too. although i would much rather every title in library could have multi-language supprot.\

-.
├── Title1
│   ├── Volume 1.cbz
│   ├── Volume 2.cbz
│   ├── Volume 3.cbz
│   └── Volume 4.zip
└── Title 2
    └── en
        └── Ch.1 - Ch.3
            ├── 1.zip
            ├── 2.zip
            └── 3.zip
    └── fr
        └── Ch.1 - Ch.3
            ├── 1.zip
            ├── 2.zip
            └── 3.zip