Added network usage stats to docker collector.
Added network usage stats to docker collector.

baris/fullerite,Yelp/fullerite,tsheasha/fullerite,baris/fullerite,baris/fullerite,tsheasha/fullerite,mikepea/fullerite,Yelp/fullerite,tsheasha/fullerite,mikepea/fullerite,tsheasha/fullerite,venkey-ariv/fullerite,Yelp/fullerite,Yelp/fullerite,venkey-ariv/fullerite,mikepea/fullerite,venkey-ariv/fullerite,baris/fullerite,venkey-ariv/fullerite,mikepea/fullerite