add smarty to composer
introduce SmartyView to use Smarty template engine

also add smartyPlugins to vendor folder
Merge pull request #523 from batopa/cake3-smarty

Cake3 Smarty
Update README.md
cake3 - introduced auth system

* very basic auth system (an authenticate object needed to check policy and groups)
* support for old md5 hashing password with migration to default cakephp 3 algorithm
add loginPolicy through BEditaAuthenticate class

add also update user data in BEditaAuthenticate class after login success/error
add super basic group authorize handler

to auth only users that belong to backend group
add smarty template
add comments
Merge remote-tracking branch 'origin/cake3-auth' into cake3-auth

Conflicts:
	src/Auth/BEditaAuthenticate.php
	src/Auth/GroupAuthorize.php
	src/Auth/Md5PasswordHasher.php
	src/Controller/AppController.php
	src/Controller/UsersController.php
	src/Template/Layout/default.ctp