Option to not alter names of the downloaded files

[yjeroen]

By default the PatreonDownloader renames the files it downloads. I didn't see an option to disable that in --help.

[AlexCSDev]

While it's not hard to add command line option to disable this behavior, this might result in undesired behavior due to the way files are stored in a single post. ("PostFile" and "PostMedia" being able to share the same name, but being different files)

Needs further research to implement properly.