added hash.py. why not.

modules/hash.py

@@ -0,0 +1,18 @@
+import hashlib
+
+class Module(object):
+    def __init__(self, bot):
+        self.bot = bot
+        bot.events.on("received").on("command").on("hash"
+            ).hook(self.hash, min_args=2, help="Hash a string",
+            usage="<algo> <string>")
+
+    def hash(self, event):
+        algorithm = event["args_split"][0].lower()
+        if algorithm in hashlib.algorithms_available:
+            phrase = " ".join(event["args_split"][1:])
+            cipher_text = hashlib.new(algorithm, phrase.encode("utf8")
+                ).hexdigest()
+            event["stdout"].write("%s -> %s" % (phrase, cipher_text))
+        else:
+            event["stderr"].write("Unknown algorithm provided")