Add aeg.cipher(alg) for loading modules by name in str. Added aeg.CIPHERS mapping of the nominal names to module names and Cipher for typing literals.

src/aeg/_ciphers.py

@@ -0,0 +1,20 @@
+# This file is generated by tools/generate.py. Do not edit.
+from typing import Literal
+
+CipherName = Literal[
+    "AEGIS-128L",
+    "AEGIS-128X2",
+    "AEGIS-128X4",
+    "AEGIS-256",
+    "AEGIS-256X2",
+    "AEGIS-256X4",
+]
+
+CIPHERS: dict[CipherName, str] = {
+    "AEGIS-128L": "aegis128l",
+    "AEGIS-128X2": "aegis128x2",
+    "AEGIS-128X4": "aegis128x4",
+    "AEGIS-256": "aegis256",
+    "AEGIS-256X2": "aegis256x2",
+    "AEGIS-256X4": "aegis256x4",
+}