* Frames moved: cvpcb, cvpcb footprints frame, gerbview, pagelayout editor
This also introduces new EDITOR_CONDITIONS that are used to set the
conditions of very common editor settings.
Also, some IDs were converted to tools in the pagelayout editor.
CHANGED: Cvpcb fpviewer and the pcbnew fpviewer no longer have an options dialog
ADDED: Add a side toolbar to the pcbnew footprint viewer (and the measure tool)
This also cleans up some of the settings structs in the viewers, since
it was somewhat confusing before.
Fixes https://gitlab.com/kicad/code/kicad/issues/2205
* Consolidate the measure tool into one tool (this gives cvpcb
unit changing and snapping capabilities in its measure tool)
* Transition cvpcb to use actions for the sketch modes
* Replumb how magnetic items settings are stored and used
CHANGED: Settings are now stored in versioned sub-directories
ADDED: First-run dialog for migrating settings from a previous version
CHANGED: Settings are now stored as JSON files instead of wxConfig-style INI files
CHANGED: Color settings are now all stored in a separate settings file
CHANGED: The symbol editor and footprint editor now have their own settings files
CHANGED: Color settings are no longer exposed through BOARD object
CHANGED: Page layout editor now uses Eeschema's color scheme
Settings are now managed through a central SETTINGS_MANAGER held by PGM_BASE.
Existing settings will be migrated from the wxConfig format on first run of each application.
Per-application settings are now stored in one class for each application.
* Make the grid display settings separate from the board object
* Ensure that the grid is initialized on creation in all the frames
Fixes: lp:1843169
* https://bugs.launchpad.net/kicad/+bug/1843169
Add Display Settings to Footprint Browser.
Make each of them OpenGL on OSX and Cairo on other platforms.
Allow auto-zoom to be turned off and save last zoom setting.
Make ordering of tools in htoolbar consistent.
Standardize grid and zoom drop-downs.
Fixes: lp:1791667
* https://bugs.launchpad.net/kicad/+bug/1791667
This allows it to participate in Kiway things such as updating
language or common settings.
Fixes: lp:1779558
* https://bugs.launchpad.net/kicad/+bug/1779558
(cherry picked from commit b3f8478)
Jeff Young
Seth Hillbrand
Mark Roszko
Ian McInerney
Jon Evans
jean-pierre charras