Removed useless tests, will need to complete a more comprehensive test
suite however this is not the priority right now
Added a live value dict in the core whose values are populated by the
core's input thread
Implemented handshake in json server and handoff to endpoint
Endpoint handles connector handshake accept/decline then launches both
its IO threads alongside its heartbeat thread which contains simple
timeout logic, timeout calls connection handles to close, subsequently
killing the endpoint
Further isolated json specifics to their own module under protocols/json
Moved global packet classes to their own protocols/packets module
Implemented ConnectorEndpoint and ConnectorRegistry as transport
agnostic connector endpoints for universal connector handling, exposed a
ConnectorRegistry API that will need to be made available to the
JsonServer for it to be able to register and unregister endpoints as it
opens and closes connections
Implemented a top down shutdown architecture where each object is
responsible for its children, this allows for a logical and heirachical
flow, each object has its own stop event, which when its stop method is
called, it sets and then awaits the stopped event to be set by any
worker threads etc, with a mandatory timeout to avoid hanging on
shutdown
h3cx