Feature: allow configuring Nginx for each domain within KloxoMR

[postcd]

It would be nice if there is noob friendly way to configure Nginx on per domain basis from within KloxoMR without need to search Google on where are configuration files etc. and involve command line work.

Maybe just some special nginx config file which i will update from within KloxoMR and things/variables i add will override default config.

I see .htaccess files are not supported in Nginx, so i convert htaccess to the nginx format using tool like https://winginx.com/en/htaccess and then finding way to apply the code in KloxoMR on per domain / directory basis.