0.0.9

• Updated documentation and tutorials
• Reworked iGraph support to track RCy3 implementation
• Added iGraph support for Graph, DiGraph, MultiGraph, MultiDiGraph
• Updated node/edge-to-suid functions to allow detection of multiple copies of a node/edge
• Enabled delete_duplicate_edges to ignore edge direction
• Added support for discrete and continuous value generators (as gen* functions in new style_auto_mappers module)