makeAdjacency filled each neighbor list in PairWeightMap (unordered_map)
order, and the local-move loop took the first best community from an
unordered_map. Both orders differ between libc++ and libstdc++, so the same
corpus produced different communities on macOS and Linux, and
topology_representative_rule failed on macOS. Neighbor lists are now sorted
by index and equal-gain moves go to the smaller community id. The louvain
characterization is regenerated; macOS and Linux now give the same result.
Signed-off-by: trvon <me@trevon.dev>
b6e6cd38f8