Modify core to be specialized on only one infrastructure at a time

[ElysaSrc]

Description and goal

Adapt the core instances so they can be started dynamically with specific infrastructure.

Messages that should be supported:

• pathfinding_routes / (pathfinding_routes_v2 train schedule v2)
• standalone_simulation
• project_signals
• detect_conflicts
• stdcm

Acceptance criteria

• [ ] Implement the startup of core with an infrastructure identifier.
• [ ] Publish latest seen messages in redis so core_controller can know when destroy a pool
• [ ] Implement the processing of requests from editoast.
• [ ] Implement the way to send message to a custom queue for responses when ready.