We probably don't need it, but some code attempts to dereference
it so safer to have one then to start checking everywhere for
dereferences.
Fixes https://gitlab.com/kicad/code/kicad/issues/5353
This API doesn't transfer ownership, so no smart pointers are required --
this just needlessly tightens requirements on the user of the interface.
(Fixes five instances of MSVC C26410 warning)
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.
Jeff Young
Simon Richter
Jon Evans
jean-pierre charras
Maciej Suminski