1) Don't set user layer count right after we've
cleared the enabled user layers. (It will
always be 0 by then.)
2) Allow un-enabled layers in some layer
selectors. (Currently this is just the private
layers selector.
3) Reset the appearance panel layers each time a
footprint is loaded. Also, auto-enable any user
layers that the footprint already has.
4) Footprint editor layer visibility is stored in
the view, not in the boars (as is usual).
Fixes https://gitlab.com/kicad/code/kicad/-/issues/20022
(Regardless of report-all-errors-per-track setting.
There's no clear rule here, but to do otherwise just
feels wrong. Keepout areas are distinct, it's not
like tracks too close together reporting lots of
clearance errors.)
Fixes https://gitlab.com/kicad/code/kicad/-/issues/13219
Recommendation is to avoid using the year nomenclature as this
information is already encoded in the git repo. Avoids needing to
repeatly update.
Also updates AUTHORS.txt from current repo with contributor names
The separates it from the LAYER_SELECTOR class - deciding
what color a layer is (say) is separate to managing the
actual selection of the layer. For example, sel_layer.cpp
only needs the presentation logic. This also makes it eaiser
to compose rather than inherit.
Additonally, break out the layer pair swatch function
to this class.
This will also be needed by the layer pair manager UI.
Relates-To: https://gitlab.com/kicad/code/kicad/-/issues/15227
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.
