remove node_modules and .gitignore them

node_modules/tstl/iterator/IReversableIterator.d.ts

@@ -1,19 +0,0 @@
-/**
- * @packageDocumentation
- * @module std
- */
-import { IBidirectionalIterator } from "./IBidirectionalIterator";
-import { IReverseIterator } from "./IReverseIterator";
-/**
- * Reversable iterator
- *
- * @author Jeongho Nam - https://github.com/samchon
- */
-export interface IReversableIterator<T, IteratorT extends IReversableIterator<T, IteratorT, ReverseT>, ReverseT extends IReverseIterator<T, IteratorT, ReverseT>> extends IBidirectionalIterator<T, IteratorT> {
-    /**
-     * Construct reverse iterator.
-     *
-     * @return The reverse iterator.
-     */
-    reverse(): ReverseT;
-}