"Now playing" field in Internet radios

[ATE-666]

The "Now playing" missing in Kore in Internet radio streams from .strm

Internet radio streams provide a dynamic metadata field called "Now playing". This field may contain the name of the radio, and, if it is music, the name of the artist and song.
If a stream URL is put inside a .strm file, there are two ways to play it in Kodi. The first is to select it from the Kodi TV interface or from the web interface. In this case, the "Now playing" field is shown, in the main interface, in the web inteface and also in Kore. The second is to select it from Kore, by going in the Files menu. In this case, the "Now playing" is not shown.
Example, take this URL: http://stream.srg-ssr.ch:80/m/rsp/aacp_96
If it is selcted in the first way, Kore will show the current song playing. If selected from Kodi, Kore will only show that aacp_96 is playing, meaning that Kore does not show neither the name of the artist/song, neither the name of the radio, neither the name of the .strm file (which could indicate the name of the radio).