ADDED: When pin length is changed now, the pin position is adjusted
according to its orientation such that the connection point for wires
moves instead of the other side of the stem base. For pins coming out of
component boxes, etc. this keeps them attached to the box while the
length is changed.
A info banner is now shown (in synchronized mode) to inform an user when extra
pins are added to other units when a new pin is added.
A good info about the synchronized mode is not easy to create.
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.