nginx+php74-fpm evironment for webasyst (rhel7)

[sabinich]

nginx configuration based on official documentation: https://developers.webasyst.ru/docs/installation/tips/nginx-fastcgi/ By default, with environment work under Centos 7 and remi's repo. Release for last php version, which support by webasyst - 7.4. But you may switch it to another php version