In common.cpp GetTimeStamp is renamed GetNewTimeStamp (a better name).
Pcbnew: prepare work to calculate connections between pads that inteserct and therefore can be connected without any track (composite pads).
which should eventually go away in favor of kicad_plugin.cpp.
Add CMake options USE_NEW_PCBNEW_LOAD and USE_NEW_PCBNEW_SAVE, which should not be
used yet, and both default to OFF accordingly.