Add definitions for gulp-debug (https://github.com/sindresorhus/gulp-debug)

gulp-debug/gulp-debug-tests.ts

@@ -0,0 +1,14 @@
+/// <reference path="gulp-debug.d.ts" />
+/// <reference path="../gulp/gulp.d.ts" />
+
+import gulp = require('gulp');
+import debug = require('gulp-debug');
+
+gulp.task('default', () =>
+    gulp.src('foo.js')
+        .pipe(debug({title: 'unicorn:'}))
+        .pipe(gulp.dest('dist'))
+);
+
+
+debug();

gulp-debug/gulp-debug.d.ts

@@ -0,0 +1,17 @@
+// Type definitions for gulp-debug v2.0.1
+// Project: https://github.com/sindresorhus/gulp-debug
+// Definitions by: Tanguy Krotoff <https://github.com/tkrotoff>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module 'gulp-debug' {
+    interface IOptions {
+        title?: string;
+        minimal?: boolean;
+    }
+
+    function debug(options?: IOptions): NodeJS.ReadWriteStream;
+
+    export = debug;
+}