Replace pm2-axon with ZeroMQ for IPC communication

[ishantiw]

Description

Replace pm2-axon with ZeroMQ

• Update ipc-client.ts, ipc-server.ts and ipc-socket.ts files under src/controller/ipc

  • ipc_socket to use updated string for connection
  • ipc_server to use zeromq.Publisher and zeromq.Subscriber binded to internal.pub.ipc and internal.sub.ipc respectively
  • ipc_client to use zeromq.Publisher and zeromq.Subscriber connected to internal.sub.ipc and internal.pub.ipc respectively to communicate with the server supporting both pub/sub and RPC.

• Update Bus and Channel to use ZeroMQ changes

  • Update Bus for changes under setupIPCServer to handle new IPC changes
  • Update Channel registerToBus and invoke functions to handle new IPC changes

• Fix integration tests under test/integration/controller/ipc

Acceptance Criteria

• Unit tests under test/unit/controller should pass
• Integration tests should pass under test/integration/controller/ipc

Additional Information

• Related Improve plugin and channel implementation #6612
• Some integration and functional tests might fail which will be fixed later