Refactor model: DistributionItem

See merge request !78

Refactor model: BeamDistributionItem

See merge request !75

Fix crash in selecting "Masks" after 2D data import from combo box

Closes #81

See merge request !77

Refactor model: SpecularBeamInclinationItem

See merge request !74

CMake improvements

See merge request !73

Setting the CPACK_PACKAGE_FILE_NAME is done in every of the OS related scripts, which are called after the removed command

Necessary especially for multi-configuration generators

split boost libs / additional libs: Necessary for multi-config generators (continued in next commits)

Refactor model: PointwiseAxisItem

See merge request !72

Refactor model: BasicAxisItem and AmplitudeAxisItem

See merge request !71

Minor fixes

See merge request !70