Support DirecTV music channels with extended meta (#34228)

tests/fixtures/directv/info-get-locations.json

@@ -8,6 +8,18 @@
       "clientAddr": "2CA17D1CD30X",
       "locationName": "Client"
     },
+    {
+      "clientAddr": "A01234567890",
+      "locationName": "Music Client"
+    },
+    {
+      "clientAddr": "B01234567890",
+      "locationName": "Standby Client"
+    },
+    {
+      "clientAddr": "C01234567890",
+      "locationName": "Restricted Client"
+    },
     {
       "clientAddr": "9XXXXXXXXXX9",
       "locationName": "Unavailable Client"

tests/fixtures/directv/info-mode-standby.json

@@ -0,0 +1,9 @@
+{
+  "mode": 1,
+  "status": {
+    "code": 200,
+    "commandResult": 0,
+    "msg": "OK",
+    "query": "/info/mode"
+  }
+}

tests/fixtures/directv/tv-get-tuned-music.json

@@ -0,0 +1,28 @@
+{
+  "callsign": "MCSJ",
+  "duration": 86400,
+  "isOffAir": false,
+  "isPclocked": 3,
+  "isPpv": false,
+  "isRecording": false,
+  "isVod": false,
+  "major": 851,
+  "minor": 65535,
+  "music": {
+    "by": "Gerald Albright",
+    "cd": "Slam Dunk (2014)",
+    "title": "Sparkle In Your Eyes"
+  },
+  "offset": 15050,
+  "programId": "76917562",
+  "rating": "TV-PG",
+  "startTime": 1584784800,
+  "stationId": 2872196,
+  "status": {
+    "code": 200,
+    "commandResult": 0,
+    "msg": "OK.",
+    "query": "/tv/getTuned"
+  },
+  "title": "Smooth Jazz"
+}

tests/fixtures/directv/tv-get-tuned-restricted.json

@@ -0,0 +1,8 @@
+{
+  "status": {
+    "code": 403,
+    "commandResult": 1,
+    "msg": "Forbidden.",
+    "query": "/tv/getTuned"
+  }
+}