Update httpStatic and add httpStaticRoot for V3

Author: Steve-Mcl

lib/commands/init/resources/settings.js.mustache

@@ -140,6 +140,7 @@ module.exports = {
  *  - httpNodeCors
  *  - httpNodeMiddleware
  *  - httpStatic
+ * - httpStaticRoot
  ******************************************************************************/
 
     /** the tcp port that the Node-RED web server is listening on */
@@ -221,8 +222,25 @@ module.exports = {
     /** When httpAdminRoot is used to move the UI to a different root path, the
      * following property can be used to identify a directory of static content
      * that should be served at http://localhost:1880/.
+     * When httpStaticRoot is set differently to httpAdminRoot, there is no need 
+     * to move httpAdminRoot
      */
-    //httpStatic: '/home/nol/node-red-static/',
+    //httpStatic: '/home/nol/node-red-static/', //single static source
+    /* OR multiple static sources can be created using an array of objects... */
+    //httpStatic: [
+    //    {path: '/home/nol/pics/',    root: "/img/"}, 
+    //    {path: '/home/nol/reports/', root: "/doc/"}, 
+    //],
+
+    /**  
+     * All static routes will be appended to httpStaticRoot
+     * e.g. if httpStatic = "/home/nol/docs" and  httpStaticRoot = "/static/"
+     *      then "/home/nol/docs" will be served at "/static/"
+     * e.g. if httpStatic = [{path: '/home/nol/pics/', root: "/img/"}]
+     *      and httpStaticRoot = "/static/"
+     *      then "/home/nol/pics/" will be served at "/static/img/"
+     */
+    //httpStaticRoot: '/static/',
 
 /*******************************************************************************
  * Runtime Settings