Beginnings of a WH40K.EXE implementation

So far, we just play the opening credits on an external video player.
I want to start loading and displaying the menus next. Perhaps I can
get the entire non-gameplay flow working?

cmd/wh40k/main.go

@@ -1,5 +1,21 @@
 package main
 
-func main() {
+import (
+	"log"
+	"os"
 
+	"ur.gs/ordoor/internal/wh40k"
+)
+
+func main() {
+	configFile := "config.toml"
+	if len(os.Args) == 2 {
+		configFile = os.Args[1]
+	}
+
+	if err := wh40k.Run(configFile); err != nil {
+		log.Fatalf(err.Error())
+	}
+
+	os.Exit(0)
 }