Make RustRaptor the repository root and track its playable bundle

mods/iron_coast_campaign/art/provenance.json

@@ -0,0 +1,18 @@
+{
+  "format": 1,
+  "assets": [
+    {
+      "path": "art/briefing_sd.png",
+      "sha256": "2a31dd73151657f3ef41de6b936a8f4adfea98a4125bbee94f65adc60ca27587",
+      "source": "../iron_coast_mission_1/art/briefing_sd.png",
+      "method": "Unchanged copy of the generated Mission 1 campaign portrait. The assembly only owns its campaign artwork."
+    },
+    {
+      "path": "art/briefing_hd.png",
+      "sha256": "4312ecd2264e588c291084b3e5fc951ff1ac72caa5df26e68c222e7c72139478",
+      "source": "../iron_coast_mission_1/art/briefing_hd.png",
+      "method": "Unchanged copy of the generated Mission 1 campaign portrait. The assembly only owns its campaign artwork."
+    }
+  ],
+  "original_data_copied": false
+}