Add Soviet Anthem music disc with sound, recipe, and assets

src/main/resources/assets/stalinium/lang/en_us.json

@@ -1,5 +1,8 @@
 {
-  "item.stalinium.uranium_ingot": "Stalinium Ingot",
+  "item.stalinium.stalinium_ingot": "Stalinium Ingot",
 
-  "block.stalinium.uranium_block": "Block of Stalinium"
+  "item.stalinium.soviet_anthem_music_disc": "Soviet Anthem Music Disc",
+  "item.stalinium.soviet_anthem_music_disc.desc": "Orchestra of the Ministry of Defense of the USSR - Soviet Union national anthem",
+
+  "block.stalinium.stalinium_block": "Block of Stalinium"
 }

src/main/resources/assets/stalinium/sounds.json

@@ -0,0 +1,10 @@
+{
+  "soviet_anthem": {
+    "sounds": [
+      {
+        "name": "stalinium:soviet_anthem",
+        "stream": true
+      }
+    ]
+  }
+}

src/main/resources/data/stalinium/jukebox_song/soviet_anthem.json

@@ -0,0 +1,8 @@
+{
+  "comparator_output": 15,
+  "description": {
+    "translate": "item.stalinium.soviet_anthem_music_disc.desc"
+  },
+  "length_in_seconds": 224.0,
+  "sound_event": "stalinium:soviet_anthem"
+}