move python inference to Azaion.Inference folder

Azaion.Inference/inference.pxd

@@ -0,0 +1,27 @@
+from remote_command cimport RemoteCommand
+from annotation cimport Annotation
+from ai_config cimport AIRecognitionConfig
+
+cdef class Inference:
+    cdef object session
+    cdef object on_annotation
+    cdef Annotation _previous_annotation
+    cdef AIRecognitionConfig ai_config
+    cdef bint stop_signal
+
+    cdef str model_input
+    cdef int model_width
+    cdef int model_height
+
+    cdef bint is_video(self, str filepath)
+    cdef run_inference(self, RemoteCommand cmd, int batch_size=?)
+    cdef _process_video(self, RemoteCommand cmd, int batch_size)
+    cdef _process_image(self, RemoteCommand cmd)
+    cdef stop(self)
+
+    cdef preprocess(self, frame)
+    cdef postprocess(self, output, int img_width, int img_height)
+
+
+    cdef detect_frame(self, frame, long time)
+    cdef bint is_valid_annotation(self, Annotation annotation)