HNX v1.1

1. Static Hypergraph refactored to improve performance across all methods.
2. Added modules and tutorials for Contagion Modeling, Community Detection, Clustering, and Hypergraph Generation.
3. Cell weights for incidence matrices may be added to static hypergraphs on construction.
4. Changed nodes and edges to UserLists with the option to add properties in Static Hypergraph.
5. Static Hypergraph nodes has membership property for fast look up of edges incident to a node.