Types: added missing var "console" into njs_shell.
diff --git a/ts/njs_shell.d.ts b/ts/njs_shell.d.ts
index 3a6aa5e..ce3e314 100644
--- a/ts/njs_shell.d.ts
+++ b/ts/njs_shell.d.ts
@@ -7,3 +7,5 @@
     time(label?: NjsStringLike): void;
     timeEnd(label?: NjsStringLike): void;
 }
+
+declare const console: Console;