It had several encapsulation leakage issues, as well as poorly-defined
behaviour of undo for chained-actions (append-to-board, and then rotate
while moving, for instance).
dropping files to Kicad manager :
*.kicad_pro, *.pro -> open project;
gerber and job files -> open in Gerbview editor;
Eagle and Cadstar files -> open project.
dropping file to schematic editor -> append schematic;
dropping library file to Symbol editor -> add library;
dropping board file to PCB editor -> append board;
dropping library or footprint file to Footprint editor -> add library or import footprint;
dropping ZIP file or gerber files to Gerbview editor -> open files;
dropping sheet file to Drawing Sheet editor -> open sheet.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/11638
Added hotkey for cycling through net & netclass color modes.
Added hotkey for cycling through ratsnest layer visibilities.
Added code to display hotkey (if set) on the above and on high-contrast
cycle.
Fixes https://gitlab.com/kicad/code/kicad/issues/9312
Note that the dialogs which have mutliple options were not moved over
as it seems perahps not the right choice to have them save state between
sessions.
Fixes https://gitlab.com/kicad/code/kicad/issues/8762
ADDED Paste Special... action in pcbnew
CHANGED Additional options for Paste Special... in eeschema, including
"Assign unique reference designators to pasted instance"