Rename more subpackages and modules

telethon/_crypto/__init__.py

@@ -0,0 +1,10 @@
+"""
+This module contains several utilities regarding cryptographic purposes,
+such as the AES IGE mode used by Telegram, the authorization key bound with
+their data centers, and so on.
+"""
+from .aes import AES
+from .aesctr import AESModeCTR
+from .authkey import AuthKey
+from .factorization import Factorization
+from .cdndecrypter import CdnDecrypter