* Moved AddHandler<T> and AddHandler(Type) methods from IHandlersCollection to extension methods
* Added public constructor to IHost types form extensibility
* Code cleanup
* Fixed wrong LeveldDebug method calls after moving logic from providers to router
* Added independent "IndentFlags" property to inner debugger class
* Fixed debug logging in few places
* Removed "ICollectingOptions" and merged it with new options abstract "ITelegratorOptions"
* Added WebHook version of hosting class
* Added debug logging helper that use default Debug tracer to trace filter, providers, routers and pool execution
* Added debug logging for failing during handlers resolving, filters
* Added new "CreateEmptyBuilder" methods for TelegramBotHost class
* Addede ability to name handlers using "DisplayNameAttribute". This name is writed to descriptor's "DisplayString" property
* Fixed missing summaries inside Hosting library
Rikitav