Split base85.py into functions, Add doctests (#5746)

* Update base16.py

* Rename base64_encoding.py to base64.py

* Split into functions, Add doctests

* Update base16.py

ciphers/base16.py

@@ -1,30 +1,30 @@
 import base64
 
 
-def encode_to_b16(inp: str) -> bytes:
+def base16_encode(inp: str) -> bytes:
     """
     Encodes a given utf-8 string into base-16.
 
-    >>> encode_to_b16('Hello World!')
+    >>> base16_encode('Hello World!')
     b'48656C6C6F20576F726C6421'
-    >>> encode_to_b16('HELLO WORLD!')
+    >>> base16_encode('HELLO WORLD!')
     b'48454C4C4F20574F524C4421'
-    >>> encode_to_b16('')
+    >>> base16_encode('')
     b''
     """
     # encode the input into a bytes-like object and then encode b16encode that
     return base64.b16encode(inp.encode("utf-8"))
 
 
-def decode_from_b16(b16encoded: bytes) -> str:
+def base16_decode(b16encoded: bytes) -> str:
     """
     Decodes from base-16 to a utf-8 string.
 
-    >>> decode_from_b16(b'48656C6C6F20576F726C6421')
+    >>> base16_decode(b'48656C6C6F20576F726C6421')
     'Hello World!'
-    >>> decode_from_b16(b'48454C4C4F20574F524C4421')
+    >>> base16_decode(b'48454C4C4F20574F524C4421')
     'HELLO WORLD!'
-    >>> decode_from_b16(b'')
+    >>> base16_decode(b'')
     ''
     """
     # b16decode the input into bytes and decode that into a human readable string