switch from hardware object to string

and replace mac address to disk serial number
for more predictable hash key

Azaion.Inference/security.pxd

@@ -1,5 +1,4 @@
 from credentials cimport Credentials
-from hardware_service cimport HardwareInfo
 
 cdef class Security:
     @staticmethod
@@ -9,7 +8,7 @@ cdef class Security:
     cdef decrypt_to(input_bytes, key)
 
     @staticmethod
-    cdef get_hw_hash(HardwareInfo hardware)
+    cdef get_hw_hash(str hardware)
 
     @staticmethod
     cdef get_api_encryption_key(Credentials credentials, str hardware_hash)