Added the functionality to handle heterogeneous graph with multiple node and edge types.
Similar functions available as for undirected networks such as construction of train/test sets separately per edge type with high customizability.
What's Changed
- added example on represetation learning and visualization by @pstrybol in #2
- Added functionality for heterogeneous graphs by @pstrybol in #3
Full Changelog: v0.1.0...v0.2.0