Unfortunately the KiCad library I/O does not unescape file names so do not
escape them in the Eagle board plugin.
(cherry picked from commit cf97432833)
This was a crude hack that appends the library URN ordinal to the name of
the footprint so that it can be correctly looked up by the "element" node.
The Eagle XML DTD does not make it clear how the URN "ASSET_ID" and
"VERSION" are used to look up the appropriate "ASSET_TYPE" so this is a
best guess and seems to work correctly.
The inferred edge clearance dialog had to be disabled when importing third
party boards because on GTK (and possibly other platforms) the dialog would
completely hang KiCad preventing the imported board and possible schematic
from being saved.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/12897
(cherry picked from commit 34ec57958d)
Wayne Stambaugh
Jeff Young
Alex Shvartzkop
Ian McInerney