Add group-title tag in Move tv

[kalehrl]

Your current Move tv script doesn't add group-title tag to channels so all channels are in 1 group, move.tv. Please parse categories from the json file to add channels to groups. Some channels belong to 2 or 3 different groups:

      "categories": [
        {
          "live_category_id": 27,
          "name": "Filmski",
          "picture": {
            "icon": "/images/logo_category/content_type_1_category_27_dark.png",
            "background": null,
            "poster": null,
            "originalTitleLogo": null,
            "squareLogo": null,
            "posterMark": null
          }
        },
        {
          "live_category_id": 371,
          "name": "Serijski",
          "picture": {
            "icon": null,
            "background": null,
            "poster": null,
            "originalTitleLogo": null,
            "squareLogo": null,
            "posterMark": null
          }
        }
      ],