add .snyk policy

ts/mod_npm/index.ts

@@ -51,6 +51,9 @@ let prepare = async () => {
   return;
 };
 
+/**
+ * publish a package to npm
+ */
 let publish = async () => {
   let npmAccessCliString = ``;
   const config = await configModule.getConfig();

ts/npmci.plugins.ts

@@ -1,7 +1,4 @@
-import 'typings-global';
 export import beautylog = require('beautylog');
-export let gulp = require('gulp');
-export import gulpFunction = require('gulp-function');
 export import lodash = require('lodash');
 export import npmextra = require('npmextra');
 export import path = require('path');