Rel1.5

[ibaldin]

• Changes to packaging (flit instead of -m build)
• Update to Neo4j 5.3.0
• Addition of various features (NUMA, PTP)
• Bug fixes #174

[ibaldin]

@kthare10 could you re-approve?

[ibaldin]

Latest is 1.5.1 in PyPi

[ibaldin]

@kthare10 can you re-re-approve :-) I think this is ready to merge to master/main