Add debug commands

[vjik]

The following console command to debug should be present:

• Dump router settings
• Dump all routes
• Dump specific routes group
• Test an URL to match a route

Extracted from https://github.com/yiisoft/yii-debug/issues/202

[xepozz]

There is the https://github.com/yiisoft/router/blob/master/src/Debug/DebugRoutesCommand.php for all routes and groups