NodeWeightGenerator API confusion

[ferencberes]

Two different node weight is needed in this experiment:

• sample message sources with respect to staked ethereum value
• sample adversary nodes with respect to network centrality properties

Possible solution: Do NOT enable centrality options in NodeWeightGenerator! Simply, select top K nodes with highest centrality and set them to be adversaries (kind of what Pisti implemented..) It might be a better and much more straightforward way to experiment with than to sample with respect to centrality...

[ferencberes]

Final solution: NodeWeightGenerator has only 2 modes: stake, random Central nodes can be set manually to be adversaries using:

• network.Network.get_central_nodes() function AND
• new Adversary API where 'adversaries' can be set as a list