Started NetworModel API branch
started network model API
update
Some documentation added, Sonar problems corrected, Barabasi Albert Model implemented with efficiency
New efficient implementation for BarabasiAlbert Model with minimum degree parameter
more generators and tests
Dependency Injection correction
WS model inited
model utils updated
added WS model default implementation
simple test added for WS model
WSModel Interface updated
updated WSModel
network module updated with the new WSModel