Route debug in aspnet 2.2

[thangchung]

At the moment, we hit some issues when tried to run the app in container. We need some way to debug the route in aspnetcore 2.2 apps. Almost old debug libs were out of date.

Reference:

• https://github.com/kobake/AspNetCore.RouteAnalyzer <== out of date
• https://github.com/ardalis/aspnetcoreroutedebugger <== newer, but I'm not check
• https://gist.github.com/McKabue/b5caf25f9862b2488a9fa7898e22e86e#file-get_all_routes_in_asp-net_mvc_core_2-cs
• https://gist.github.com/sam9291/dba558f417a04b1775b51b20eb0f96ab