Add automatic node setup

What is this feature: Automatic node setup, by giving remnawave panel ssh credentials to server, on which user wants to create a node.

Why project needs that feature: quality of life, and easier setup for beginners.

How to implement: make a bash setup script, which panel would execute on server that user wants node to be.

Для таких новичков есть понятная (буквально скопировал - вставил) документация.

Также в разделе Awesome Remnawave есть множество скриптов-автоустановщиков от коммьюнити ❤️ Awesome Remnawave | Remnawave Documentation