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/annotation.pxd

@@ -1,8 +1,10 @@
 cdef class Detection:
-    cdef double x, y, w, h
-    cdef int cls
+    cdef public double x, y, w, h, confidence
+    cdef public int cls
 
 cdef class Annotation:
     cdef bytes image
-    cdef float time
-    cdef list[Detection] detections
+    cdef long time
+    cdef public list[Detection] detections
+    cdef bytes serialize(self)
+