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
The Boost UUID random generator can throw an entropy error in the KIID
object constructor which leaves the UUID generator in an undefined state.
This is treated as a fatal error and KiCad is closed. The likelihood of
this occurring is low but at least now it is properly handled and cannot
result in UUID clashes.
Reports 305311, 305372, 305492, 314743, 314754, 314757, 316277.