Integrates Samsung Multiroom mediaplayer as a radio on Home Assistant Works at least with Samsung WAM750

Based on https://github.com/macbury/ha_samsung_multi_room

Implemented "for my needs", feel free to contribute or do anything you like..

media_player:

• platform: samsung_multi_room name: "WAM750" # optional host: 192.168.1.233 # ip of your soundbar max_volume: 20