- in Geometry UI finished a very basic way for the Polish feature (this will be upgraded in the future, for now is very rough)
- added some new GUI elements by subclassing some widgets for the dialog pop-ups
- in NCC Tool and Isolation Tool, pressing the shortcut key 'T' will bring the add new tool pop up in which now it is included the button to get the optimal diameter
- in Geometry UI and for Solderpaste Tool replaced the pop up window that is launched when using shortcut key with one that has the context menu translated
- some UI cleanup in the Geometry UI
- added multiple algorithms for path optimization when generating GCode from an Geometry object beside the original Rtree algorithm: TSA, OR-Tools Basic, OR-Tools metaheuristics
- added controls for Geometry object path optimization in Preferences
- fixed the issue with factory_defaults being saved every time the app start
- fixed the preferences not being saved to a file when the Save button is pressed in Edit -> Preferences
- fixed and updated the Transform Tools in the Editors
