Add siren functionality

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

@@ -140,5 +140,6 @@
   "block.new_soviet.landmine": "AP Landmine",
   "block.new_soviet.chiseled_mangrove_door": "Chiseled Mangrove Door",
   "block.new_soviet.chiseled_oak_door": "Chiseled Oak Door",
-  "block.new_soviet.chiseled_spruce_door": "Chiseled Spruce Door"
+  "block.new_soviet.chiseled_spruce_door": "Chiseled Spruce Door",
+  "subtitles.new_soviet.siren": "Siren goes off"
 }

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

@@ -4,6 +4,12 @@
     "sounds": [
       "new_soviet:dice_roll"
     ]
+  },
+  "siren_sound": {
+    "subtitle": "subtitles.new_soviet.siren",
+    "sounds": [
+      "new_soviet:siren"
+    ]
   }
 }