Added Optimization for Sectors A and C; Added Optimization for mandatory Mathematik and Geschichte
Added customization for Kunst/Musik
Added Optimization for Sector 2

Added method for finding the subject with the best semesterMark out of a list of subjects
Added Optimization for Natural Science Subjects
Separated Optimizer class in two

OptSearcher only has static methods, Optimizer has to be instantiated
Staged forgotten OptSearcher class

'Cause I'm just that fucking dumb
Added Optimization for ForeignLanguage Subjects

Repurposed searchForNatScSubjects method to searchForNatScAndFLangSubjects (name not final)
Commit, don't know why