* Represents a cursus of a student. It is equivalent to an individu in a EA.
* Here, it is defined as an eoVector of int: eoInt with a "eoMinimizingFitness" template. Each int represents a course.
* In version 1, the representation is based on the course's ID. In further version, this could become deprecated and be based on the course's position inside the problem's vector.
* In version 1.1, the representation is based on the course's position in the vector. Older version dealing with the course's ID **IS** deprecated