Have it managed by the particle!

Currently the spectra points are still there...

Bugfix in contour selection

ParticlePainting Working, still bug in contour selection...

BugFix in Particle Reassignment, Combination.
Performance increase..

Particle Reassignment works

Contour selection works as previously

Contours are working and can be selected

Load TrueMatchResult Works

Basic plots working, proceeding to contours

AnotherStepOfRefactoringDone

First phase of refactoring

further restructuring of code in respect to analysisview; pixelscale modes are now handled in dataset; dataset object are now able to be compared for consistency checks later;

sqlexport (from Josed) added: credentials are imported via json file: here are still data operations

editParticles.py: correctly handle cancelation of Combine and Reassign actions; adaptation to allow usage of OpenCV 4.0 alongside 3.4
analysisview.py: some first restructuring; export dialogs are now QDialogs instead of QWidgets; restructuring of ExcelExport and bugfixes therein; hit quality index export is broken and now set to zero instead wrong numbers

several bugfixes