Brainf_uck Interpreter Class: Interpret and execute Brainf_uck language code

This class interprets and executes Brainf_uck language code.

It takes a string with the language source code and parses it to execute each character, reading data from the script input.

Currently it supports 8 commands and processes an array of character cells of up to 30000 positions.

- Get input value
- Output a value
- Increments the cell value
- Decrements the cell value
- Increments the cell pointer
- Decrements the cell pointer
- Start and end executing a block
- Supports nested loops