[Feature Request] Deluge client support

[cotanaj]

Current supported list of download clients does not include Deluge and it would be lovely to have it supported.

[GDawg78]

👆Me too please!

[Player7up]

Same here

[Algorant]

I'm working on this, think I have a solid working approach going on my fork.

Also think I found a bug in Transmission flow, separate but found it while I was getting deluge working.

Gonna do some more testing before pr(s)?

[therobbiedavis]

@Algorant Feel free to submit the transmission bugfix you found as a separate pr. We may already have something similar in another pr, but we're just backed up reviewing.

[Algorant]

You got it chief!

Awesome project, btw. Thank you so much for making it. It rules.

[blackax1]

I was able to refactor the PR to take the download-client architecture from #599 into account #740