Summary:
This diff does not fix our Louvain implementation completely. The algorithm
internally still optimzies the wrong function, but this will at least correctly
calculate the modularity value at the end.
Fix of the algorithm will come in a separate diff
Reviewers: dsantl
Reviewed By: dsantl
Subscribers: pullbot
Differential Revision: https://phabricator.memgraph.io/D2603