rewrite inference and file loading to cython

Step 1: can compile

Azaion.AI/setup.py

@@ -0,0 +1,27 @@
+from setuptools import setup, Extension
+from Cython.Build import cythonize
+
+extensions = [
+    Extension('main', ['main.pyx']),
+    Extension('api_client', ['api_client.pyx']),
+    Extension('constants', ['constants.pyx']),
+    Extension('hardware_service', ['hardware_service.pyx']),
+    Extension('inference', ['inference.pyx']),
+    Extension('processor_command', ['processor_command.pyx']),
+    Extension('remote_handlers', ['remote_handlers.pyx']),
+    Extension('security', ['security.pyx'])
+]
+
+setup(
+    name="azaion.ai",
+    ext_modules=cythonize(
+        extensions,
+        compiler_directives={
+            "language_level": 3,
+            "emit_code_comments" : False,
+            "binding": True
+        },
+        gdb_debug=True
+    ),
+    zip_safe=False
+)