Initial commit: OpenRA game engine

Fork from OpenRA/OpenRA with one-click launch script (start-ra.cmd)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

OpenRA.Launcher/Properties/launchSettings.json

@@ -0,0 +1,20 @@
+{
+  "profiles": {
+    "Tiberian Dawn": {
+      "commandName": "Project",
+      "commandLineArgs": "Engine.EngineDir=\"..\" Game.Mod=cnc"
+    },
+    "Red Alert": {
+      "commandName": "Project",
+      "commandLineArgs": "Engine.EngineDir=\"..\" Game.Mod=ra"
+    },
+    "Dune 2000": {
+      "commandName": "Project",
+      "commandLineArgs": "Engine.EngineDir=\"..\" Game.Mod=d2k"
+    },
+    "Tiberian Sun": {
+      "commandName": "Project",
+      "commandLineArgs": "Engine.EngineDir=\"..\" Game.Mod=ts"
+    }
+  }
+}