Changed files imports

[RichardDorian]

Changed the way of how the methods and files are imported

I changed the way of how the methods and the utils files were imported. The old way was causing a problem with the pkg library. And this issue can also happen with other libraries or in a secure environement were NodeJS does not have the permission to read files on the system

By the way, I totally agree that the old method was better, it's just because it's causing some problems with libraries.

• I've added new features. (methods or parameters)
• I've added jsdoc and typings.
• I've fixed bug. (optional you can mention a issue if there is one)
• I've corrected the spelling in README, documentation, etc.
• I've tested my code. (npm run test)