[FEATURE REQUEST] Add plugins support

[a2nt]

I'd like to listen and download music from youtube, but it will be against youtube policy so I'd like to create a plugin. Which will let me do it.

Maybe we can integrate YouTube to Museeks as https://github.com/headsetapp/headset-electron

Pros:

• It allows to browse music by channels and find something new

Cons:

• Headsetap doesn't allow to play local music and I don't like the way it looks.
• No plugins supported
• To follow YouTube policy it opens extra window with video. "Due to a restriction in YouTube's policy, we can't separate the audio from the video and the player must be visible at all times."

Harmony looks better and closer to Museeks (https://github.com/vincelwt/harmony)

Pros:

• Plugins supported
• Allows to play local music and music from external services (Reddit collections, YouTube and etc)
• Doesn't opens an extra window to play YouTube video. Video is nicely integrated into interface
• Plugins supported

Cons:

• It's not opensource
• It doesn't support music collections as Headsetapp do

So basically I'd like to have plugin extensions support to add external services.

• Museeks shall have playlist bar at the left which can be hidden
• HTML5 video area could be created at playlist bar
• Playlists button toggles playlist bar
• Plugins API shall let extensions to show/hide areas and bars, create own areas and toolbars, upload/download URLs, directly access files and file info (artist, name of the song, album, etc), create and update playlists, update application library, run console commands, play/pause/next/prev

Which plugins can be done

• tag editor
• external services play
• download/upload to external services
• converting tags to UTF8
• website parsing

[martpie]

you might be interested in this discussion #260, closing this and maybe you can add your thoughts there.