XOR with phidl improvements
It first does a quick equality test using `hash_geometry` made by amccaugh. Much faster because most of the time, most of the geometries are correct.
OASIS addons for phidl
These functions were added to the new module `lytest.phidl_oas`. They reduce the size of reference layout databases that are git-tracked by 3x–10x depending on the layouts.