Graphistry

Added
* Infra: Add CI stage that installs and tests with minimal core deps (https://github.com/graphistry/pygraphistry/issues/254)

Fixed
* Fix: Core tests pass with minimal install dependencies (https://github.com/graphistry/pygraphistry/issues/253, https://github.com/graphistry/pygraphistry/issues/254)

Added
* Feature: Compute methods `materialize_nodes`, `get_degrees`, `drop_nodes`, `get_topological_levels`
* Feature: Layout methods `tree_layout`, `layout_settings`
* Docs: New compute and layout methods

Added
* Feature: `g.fetch_edges()` for neptune/gremlin edge attributes

Fixed
* Fix: `g.fetch_nodes()` for neptune/gremlin node attrbutes

Added
* Docs: [demos/demos_databases_apis/neptune/neptune_tutorial.ipynb](https://github.com/graphistry/pygraphistry/blob/master/demos/demos_databases_apis/neptune/neptune_tutorial.ipynb)

Changed
* Docs: Updated [demos/for_analysis.ipynb](https://github.com/graphistry/pygraphistry/blob/master/demos/for_analysis.ipynb) to `api=3`

Fixed
* Fix: Gremlin (Neptune) connector deduplicates nodes/edges

Added
* Feature: Gremlin connector (GraphSONSerializersV2d0)
* Feature: Cosmos connector
* Feature: Neptune connector
* Feature: Chained composition operators:
* `g.pipe((lambda g, a1, ...: g2), a1, ...)`
* `g.edges((lambda g, a1, ...: df), None, None, a1, ...)`
* `g.nodes((lambda g, a1, ...: df), None, a1, ...)`
* Feature: plotter::infer_labels: Guess node label names when not set, instead of defaulting to node_id. Runs during plots.
* Infra: Jupyter notebook: `cd docker && docker-compose build jupyter && docker-compose up jupyter`
* Docs: Neptune, Cosmos, chained composition

Changed
* Refactor: Split out PlotterBase, interface Plottable

Fixed
* Fix: Plotter has `hypergraph()`

Added
* Docs: security.md

Fixed

* Hypergraphs - detect and handle mismatching types across partitions

Changed

* Infra: Speedup testing containers via incrementalization and docker settings
* Infra: Update testing container base builds