This fixes #137 and #140. Among other things, user can specify
* node size, node line color, node face color, node line width, edge line width, and edge color as dictionaries, iterables, or strings.
* edge face color as a colormap, dictionary, iterable or string.

The `draw` function is now modularized into `draw_xgi_nodes`, `draw_xgi_hyperedges`, and `draw_xgi_complexes` as well as a few helper functions. In addition, nodes are now drawn with `scatter` not `Circle` objects.