Create a PNP interpreter

[meevee98]

The main purpose of this project is to implement a compiler to the language we created. The compiler is a translator: it gets the code written in a language and translates it to another language. The most known compilers usually translate a programming language to a machine language.
Our compiler is under construction and the first purpose is to translate code written in PNP to Web Assembly Text Format.

I was thinking that we should also implement an interpreter to PNP language. Different from the compiler, an interpreter executes the code directly. This way, the final user can write codes in PNP and effectively execute then. I could be able only to read files or could have a user interface too.