Auth Strategies (#1257)

* auth strategies

* default to no auth

* rename base auth strategy

* rename base strategy cont.

* refactor auth strategy methods and LocalAuth

* activate old session options even if is falsy value

* move restartOnAuthFail to LegacyAuthStrategy option

* add link to guide item

* update example/shell

* types

src/authStrategies/NoAuth.js

@@ -0,0 +1,12 @@
+'use strict';
+
+const BaseAuthStrategy = require('./BaseAuthStrategy');
+
+/**
+ * No session restoring functionality
+ * Will need to authenticate via QR code every time
+*/
+class NoAuth extends BaseAuthStrategy { }
+
+
+module.exports = NoAuth;