Keep metaData sync with download Tasks

[mohammadne]

Can you suggest a way that how we can keep our data sync with flutterDownloader in cases we should store some meta information about each downloaded file ( in my case I have mp3 file and I have to store a description,artist name and.. Which I should prefer to convert this map of data into json and pass it to one of named parameters in table but unfortunately there is not a column for this and as issue #195 I think you don't have plan to add this feature.) So is it possible to suggest another way to do this?

[markturnip]

I'm in the same boat with keeping meta for downloaded MP3's. It does seem there is a PR open which may help us: #209