rename package name

[alphaolomi]

This package was intended for Node Enviroment this is to run in a controlled backend environment

After several communication with users

Current name pesa-js implies this packages can be used for frontend/browser enviroment

Current suggested name is node-pesa

TOdo

• rename repo
• rename in docs
• submit package with new name to npmjs
• abandon old name

[BaharaJr]

I actually came here for the same. I just got the same thought while working on a few things.