[Feature Requests] Add --dependency-path

[HobbyistDev]

Checklist

• [X] I'm requesting a feature unrelated to a specific site
• [X] I've looked through the README
• [X] I've verified that I'm running yt-dlp version 2022.06.22.1 (update instructions) or later (specify commit)
• [X] I've searched the bugtracker for similar issues including closed ones. DO NOT post duplicates
• [X] I've read the guidelines for opening an issue

Description

The currrent yt-dlp only can specify --ffmpeg-location and the other downloader need to same path of yt-dlp or need in the PATH. This issue propose a new option --dependency-path that can extend --ffmpeg-location for another downloader or another dependency. Example : --dependency-path ffmpeg:<FFMPEG_PATH>, aria2c:<aria_path>, AtomicParsley:<atomicparsley_path>

We can even make this even further if we include plugin.Example: --dependency-path plugin:<plugin1_path>,<plugin2_path>

Verbose log

No response