Bitmaps are now identified by an enum class instead of by pointers.
Bitmap loading and caching is now handled by a class in common, and
we no longer compile most bitmaps into the binary, so there is no
longer a bitmaps static library.
Instead, bitmaps are archived to a .tar.gz file which is installed
in ${KICAD_DATA}/resources/images.tar.gz
The source PNGs are checked in to Git as the original CPP files were,
so that people can build without the required dependencies to convert
SVGs to PNGs.
Initial support is also added for dark theme icons, although this
is not yet exposed in the GUI.
Stubs are present for multi-resolution image resources, but this is
not fully-baked yet and could use some refinement.
... because that's where we do hole-to-copper clearance testing.
Also augments the Clearance Resolution reporter to report on said
hole clearances.
And changes the interpretation of HOLE_CLEARANCE_CONSTRAINT to include
local pad clearance overrides.
Fixes https://gitlab.com/kicad/code/kicad/issues/7325
Jeff Young
Marek Roszko
Jon Evans
Wayne Stambaugh
Mikolaj Wielgus
Michael Kavanagh
Ian McInerney