Use original filename if automatically matched by watchdog

[MikeLund]

My desired usecase is using watchdog to automatically see which files the Plex Agent would otherwise fail to match on -- configuring watchdog to rename files ONLY if they required a manual match in the watchdog webui.

Two different cases:

1. Adding a properly-named file sitename.22.03.05.scenename.blahblah.1080p.mp4 to watch_dir gets automatically matched by watchdog successfully -> move it to dest_dir without changing anything. (This being my new requested functionality)
2. Adding file not.in.correct.naming.format.etc.etc.mp4 doesn't get matched by watchdog -> I manually match it in webui -> it gets renamed using the format specified in new_relative_path_name. (This being the current/normal functionality)

Why?

• I prefer files being as "untouched" as possible for original consistency; if the filename works properly as-is for getting metadata, I don't want to change it. Consider as well in the (hopefully rare) case something gets matched incorrectly, it's troublesome when the original filename is gone.
• Most of my files are acquired from a private tracker automatically via RSS, and they often have a naming scheme where automatic detection with your Plex Agent works without problems. And so if I get a request in the future to reseed a specific filename, it's easier to automatically find that filename if it hasn't otherwise been modified.
• I don't use any of the enabled_* metadata options for the same reasons (and that it would change filehash for reseeding) -- I want to rely 100% on the Plex Agent to match the files that have been previously "accepted" via watchdog.

Thanks for the great work otherwise, I found this project earlier today and love the effort put into it :)

[4c0d3r]

@Darklyter can we come up with a definition of what the plugins matching algo must be? I would have to re-implement it in namer to complete this item. Just seeing the algo spelled out and committed to in the plugins would be enough.

[zinjacoder]

As I prefer the (re)naming convention defined in the config, perhaps the proposed functionality would be configurable.