This is meant as a stopgap for 5.0, with plans to add proper scaled
icons in the 6.0 cycle. A function KiScaledBitmap() is added, which
works like KiBitmap() except it scales the bitmap according to the
calling window's font size. Controls have been added to all the main
applications to let the user select scaling manually (these were omitted
from smaller apps that didn't already have a place to put them).
In addition, in eeschema only, the pixel height of the system font is
shown in the options dialog for diagnostics. This is only for collecting
feedback before 5.0 release from users with different displays and will
be removed.
bitmaps.h was included in nearly every file in the project due to it
being included by base_struct.h
Only about 130 files actually use the XPM definitions defined there, and
many of those already included bitmaps.h themselves, or via
menu_helpers.h. However, touching bitmaps.h would result in over 400
rebuilt files for pcbnew alone.
This commit moves the bitmap-related types like BITMAT_DEF out to a new
header, which is still included by base_struct.h, which is less
avoidable for now, it's it's used in the interface.
The icon list is still in bitmaps.h. This has the side effect that's
it's now easier to automatically generate this file.
Many classes in pcbnew and eeschema needed some functions moved
to the implementaitons from the headers too.