This has actually been there since dot, but the old escaping method
just deleted chars it didn't like so you could run it as many times
as you wanted.
Fixes https://gitlab.com/kicad/code/kicad/issues/8694
* 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.