1) Import leaders
2) Drop radius and angle dimensions
3) Import dimension text sizes
4) Correctly interpret which side dimension offset is on
5) Correclty handle offsets for non-cardinal dimensions
Fixes https://gitlab.com/kicad/code/kicad/issues/10763
* Fix multi line text alignment.
* Parse schematic frame objects and convert them to lines.
* Make implicit global labels normal size so they can easily be seen.
* Move sheet fields to a more sensible position.
* Parse schematic symbol instances before wires so that the implicit power
connections can properly be tested. This will be used at a later time.
* Scale label text size down to allow for differences in label offset and
graphical items.
Jeff Young
Jon Evans
Wayne Stambaugh
Marek Roszko
Michael Kavanagh