- cleanup of the CNCJob UI; added a checkbox to signal if any append/prepend gcode was set in Preferences (unchecking it will override and disable the usage of the append/prepend GCode)
- the start Gcode is now stored in the CNCJob object attribute gc_start
- GCode Editor - finished adding the ability to select a row in the Tools table and select the related GCode
- modified the visibility change in Excellon UI to no longer do plot() when doing visibility toggle for one of the tools but only a visibility change in the shapes properties
- replaced some icons in the app
- in Code Editor, when changing text, the Save Code button will change color (text and icon) to red and after save it will revert the color to the default one
- in Code Editor some methods rework
- 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
- Drilling Tool - working in adding tools auto-load from Tools DB
- some updates to the Excellon Object options
- Drilling Tool - manual add from Tools DB is working
- updated Drilling Tool to use the new settings
- updated the Excellon Editor: the default_data dict is populated now on Editor entry
- Excellon Editor: added a new functionality: conversion of slots to drills
- Excellon UI: added a new feature that is grouped in Advanced Settings: a toggle tools table visibility checkbox
- fixed bug that made the selection box show in the stage of adding manual gaps
- updated Cutout Tool UI
- Cutout Tool - in manual gap adding there is now an option to automatically turn on the big cursor which could help
- Cutout Tool - fixed errors when trying to add a manual gap without having a geometry object selected in the combobox
- fixed partially the Excellon Editor to work with the new data structure
- fixed Excellon export to work with the new data structure
- fixed all transformations in the Excellon object attributes; still need to fix the App Tools that creates or use Exellon objects
- if clicking the activity icon in the status bar and there is no object selected then the effect will be a plot_all with fit_view
- modified the FCLabel GUI element
- Geometry UI - minor updates in the layout; moved the warning text to the tooltip of the generate_cncjob button
- Geometry UI - working in making the modification of tool parameters such that if there is a selection of tools the modification in the Tool parameters will be applied to all selected
- made sure the the GUI settings are cleared on each new install
- added a new signal that is triggered by change in visibility for the Shell Dock and will change the status of the shell label in the status bar. In this way the label will really be changed each time the shell is toggled
- Tool Isolation - added a GUI element to control if the isolation of a polygon, when done with rest, should be done with the current tool even if its interiors (holes in it) could not be isolated or to be left for the next tool
- updated all the translation strings to the latest changes
