Add separate Iron Coast mission, weapon and enemy mods with SD HD artwork and audio

examples/mods/iron_coast_scout/audio-recipe.json

@@ -0,0 +1,23 @@
+{
+  "generator": "build_assets.py deterministic chirp/noise synthesis; no recordings",
+  "kind": "scout",
+  "seed": 19,
+  "files": {
+    "audio/shot.wav": {
+      "sample_rate": 22050,
+      "channels": 1,
+      "bits": 16,
+      "samples": 2425,
+      "peak": 25558,
+      "sha256": "094e3398d598762ac1d1eed70c7e3177e56f525c726385945e5071f4e215a00f"
+    },
+    "audio/death.wav": {
+      "sample_rate": 22050,
+      "channels": 1,
+      "bits": 16,
+      "samples": 7497,
+      "peak": 25558,
+      "sha256": "066c916daecaa06358ea2fe99b482b9ce115e0f9a63296664063a738dca5212e"
+    }
+  }
+}