add ramdisk, load AI model to ramdisk and start recognition from it

rewrite zmq to DEALER and ROUTER
add GET_USER command to get CurrentUser from Python
all auth is on the python side
inference run and validate annotations on python

Azaion.AI/remote_command.pxd

@@ -1,8 +1,10 @@
 cdef enum CommandType:
     INFERENCE = 1
     LOAD = 2
+    GET_USER = 3
 
 cdef class RemoteCommand:
+    cdef public bytes client_id
     cdef CommandType command_type
     cdef str filename
     cdef bytes data