Added a configuration file

reading request parameters from a file, makes us change the request
without stop to the execution.
I have also changed the name of one property, just to keep the same
name I have been using inside the code
file where all data is store

this file is written in a single line, but we can make it look
prettier, with new lines and paragraph. It’s not necessary but if we
want to read the file with our own eyes, it helps us a lot when it
looks pretty. So i have set the code to write everything in a single
line, because I believe it writes faster and will make the read run
faster too.
Option is now set before every execution

because I am reading the request parameters from a file, the request
option object is created and set right before the response is sent.