rewrite inference and file loading to cython

Step 1: can compile

Azaion.AI/processor_command.pyx

@@ -0,0 +1,23 @@
+import msgpack
+
+cdef enum CommandType:
+    INFERENCE = 1
+    LOAD = 2
+
+cdef enum ProcessorType:
+    SOCKET = 1,
+    RABBIT = 2
+
+cdef class FileCommand:
+    cdef str filename
+
+    def __init__(self, command_type: CommandType, processor_type: ProcessorType, str filename):
+        self.command_type = command_type
+        self.processor_type = processor_type
+        self.filename = filename
+
+    @staticmethod
+    cdef from_msgpack(bytes data, processor_type: ProcessorType):
+        unpacked = msgpack.unpackb(data, strict_map_key=False)
+        return FileCommand(unpacked.get("CommandType"), processor_type, unpacked.get("Filename")
+        )