include node_modules so release .zip is deployable

node_modules/tstl/thread/VariadicSingleton.d.ts

@@ -0,0 +1,11 @@
+/**
+ * Variadic singleton generator.
+ *
+ * @author Jeongho Nam - https://github.comm/samchon
+ */
+export declare class VariadicSingleton<T, Args extends any[]> {
+    private readonly closure_;
+    private readonly dict_;
+    constructor(closure: (...args: Args) => T, hashFunc?: (args: Args) => number, pred?: (x: Args, y: Args) => boolean);
+    get(...args: Args): T;
+}