Evaluate form factors for complex wave vectors (1): provide interface and implemented it for part of the Formfactors

Implement multiparameter fitting (3): added necessary normalization to enable comparison with experiments: added volume factor for reciprocal lattice vectors
+ refactored formfactor decorators

Export of OutputData in python; isgisaxs9 and mesocrystal functional test are exported to python, many corresponding changes.

OpticalFresnel now without static, new PythonAPI directory and automatic make, make install from Macros/BoostPythonGenerator

Refactored decorator classes, added Experiment, Beam and Detector classes and added prototype pattern to many classes (clone() function)

Adapted to directory structure