Add Support for 7zip archives

[abdallahmehiz]

basically users can now use 7z and cb7 files to read their manga. intended to close issue #10121 from original tachi repo Thanks to @claudemirovsky for the help getting this to work

Notes:

• The load times for archives with compression methods other than LZMA2 or Deflate are pretty bad
• PPMd, the compression method, isn't supported by Apache's common compress for 7zip so PPMd archives can't be used

so in the end, supported compression methods are: Deflate, BZip2, LZMA and LZMA2.

[AntsyLich]

PPMd, the compression method, isn't supported by Apache's common compress for 7zip so PPMd archives can't be used

Would it be possible to throw a custom error similar to what we do for Rar 5?

[AntsyLich]

And maybe a toast when opening the slow ones

[Efreak]

throw a custom error similar to what we do for Rar 5

Suggest providing an option to open the new file with another app, for example perfect viewer or a file manager.

Oddly, there is a feature request closed by the author for ppmd support in commons compress from 2014

[abdallahmehiz]

Suggest providing an option to open the new file with another app, for example perfect viewer or a file manager.

that's out of the scope of this pr

[abdallahmehiz]

did a little oopsie

[AntsyLich]

Supersedes by #949