Add options to control method failure handling in the Router middleware

[olegbaturin]

1. Add handleMethodFailure property to enable/disable method failure handling.
2. Add optionsHandler and notAllowedHandler properties to generate appropriate responses.

https://github.com/olegbaturin/yii3-router/blob/c954cadfe0d8a48619e6a78378dc73ce663b0194/src/Middleware/Router.php#L20