retry neo4j connection more, catch connection errors around session c…

…reation

increasing connection pool size, raising exception for connect errors

changing bolt connection ping to async, removing http driver

improving asyncio handling for neo4j bolt driver, reverting uvicorn u…

…pgrade

turning subclassing off for graphs with no subclass edges, making sub…

…classing an optional parameter in /query

bumping transpiler and upgrading to uvicorn with uvloop

bumping transpiler and plater versions

bumping plater version

bumping plater version