[fixes # 9 ] Comparing test sample classifications between models (#82)

* First attempt on vehicle data with a random forest calssifier

* minor changes

* Comparative model evaluation for vehicle dataset

* first attempt for implementing task 7

* fixes #8

* fixes #4, attempt 1

* implemeneted all change requests

* formatted code for all helper files

* minor fix

* fixes # 9

* fixed relative path

* fixing conflicts