Replace networkx with rustworkx

[Dominic-DallOsto]

RustworkX should be mostly the same as networkx, just a lot faster which is helpful when we're performing large graph operations.

[Dominic-DallOsto]

We could replace

def __build_graph(self):  # networkx graph
        self.graph = nx.from_pandas_edgelist(
            self.connections,
            source="start_uid",
            target="end_uid",
            edge_attr=[
                "syn_count",  # absolute synapse count
                "nt_type",
                "eff_weight",  # signed synapse count (nt weighted)
                "syn_count_norm",  # input normalized synapse count
                "eff_weight_norm",  # input normalized signed synapse count
            ],
            create_using=nx.DiGraph,
        )
    ...

with

import rustworkx as rx

g = rx.PyDiGraph()

g.add_nodes_from(connections.uid[["body_id","node_label"]].to_dict("records"))
g.add_edges_from(zip(connections.connections["start_uid"], connections.connections["end_uid"], connections.connections[["syn_count","nt_type","eff_weight","syn_count_norm","eff_weight_norm"]].to_dict("records")))

After a bit more work to ensure that all the parameters are there. This already takes 2.9 s instead of 8.7 s.