Initial sow-tools import

cmd/nwn-tool/main.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"gitea.westgate.pw/ShadowsOverWestgate/sow-tools/internal/app"
+)
+
+func main() {
+	code, err := app.Run(os.Args[1:])
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+	}
+	os.Exit(code)
+}