Add support for "input-media-keys" option

[seagull]

Is your feature request related to a problem? Please describe.
MPV supports a feature in the mpv.conf file called "input-media-keys" that can be set to NO to stop MPV from stealing media key input. I would like MPV.net to also support this feature so I can use my media keys to control my music without affecting a video playing in the foreground. Currently the setting does nothing in 7.1.1.0.

[Dregu]

I second this. I only want to use media keys to control spotify, but having mpv.net active, without any media key bindings and input-media-keys=no in the config still just disables all my media keys.

Ideally this wouldn't be behind a catch-all yes/no option either, but specific media keys should be possible to capture globally when specified in the config, while others do nothing and still work in other programs.