Topasgraphsim

What's Changed

* Added extra check for the lower dose cutoff in gamma calculations

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v20.0.2...v20.0.3

What's Changed

* Open file dialog now defualts to the most recently used directory instead of the install location

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v20.0.1...v20.0.2

What's Changed

* Added average gamma calculation

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v20.0.0...v20.0.1

What's Changed

* Added gamma index calculation by sebasj13 in https://github.com/sebasj13/TopasGraphSim/pull/80

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v19.1.1...v20.0.0

What's Changed

* Bug fixes and performance improvements

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v19.1.0...v19.1.1

What's Changed

* Quality of life updates to the zoom window
* Bug fixes and performance improvements

**Full Changelog**: https://github.com/sebasj13/TopasGraphSim/compare/v19.0.3...v19.1.0