[Feature request] script rewritting main configs

Hi all,

I was able to fully install the free5gc and run the initial test with everything working fine. I plan to integrate it with a gNB, but initially I got confused on how to configure each parameter. Maybe a suggestion (and I may work on this) is to make a script asking some of the main configs needed to integrate it with a physicall gNB would be nice, asking which MNC, MCC, etc and autofilling (or generating) the correct config file for it. I believe It would make the integration so much easier. Lastly, thank you all for the great work, hope I´ll be able to test it.

Best regards