Save sheet and symbol instance information to the clipboard on copy
Load sheet and symbol instance information from the clipboard on paste
and renumber page numbers after loading.
Correctly handle pasting in a multiple hierarchy by ensuring symbol and
sheet instances are updated for all instances of the destination sheet.
Fixes https://gitlab.com/kicad/code/kicad/-/issues/8207
Each symbol unit in eeschema has a unique identifier. But we don't have
a unique identifier for the entire symbol. So changing which symbol
instance was unit A (our default base for matching), changed the UUID
that we were using to match the footprints.
This commit adds all UUIDs to the netlist, allowing us to match symbol
to footprint without worrying about which unit is referenced.
This still does not handle changing different units on different sheets.
Fixes https://gitlab.com/kicad/code/kicad/issues/7604
Jeff Young
Jon Evans
Seth Hillbrand
Roberto Fernandez Bautista
Marek Roszko