add loader and versioning

Azaion.Inference/remote_command_handler.pyx

@@ -8,7 +8,7 @@ import yaml
 cdef class RemoteCommandHandler:
     def __init__(self, int zmq_port, object on_command):
         self._on_command = on_command
-        self._context = zmq.Context.instance()
+        self._context = zmq.Context()
 
         self._router = self._context.socket(zmq.ROUTER)
         self._router.setsockopt(zmq.LINGER, 0)
@@ -83,6 +83,7 @@ cdef class RemoteCommandHandler:
             self._control.send(b"TERMINATE", flags=zmq.DONTWAIT)
         except zmq.error.ZMQError:
             pass
+
         self._router.close(linger=0)
         self._dealer.close(linger=0)
         self._control.close(linger=0)
@@ -90,5 +91,4 @@ cdef class RemoteCommandHandler:
         self._proxy_thread.join(timeout=2)
         while any(w.is_alive() for w in self._workers):
             time.sleep(0.1)
-
         self._context.term()