added djb2 lowercase hash

algorithms/djb2_lowercase.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+
+DESCRIPTION = "A variant of the DJB2 hash algorithm that converts uppercase letters to lowercase"
+
+TYPE = 'unsigned_int'
+
+TEST_1 = 0xd87d4bef
+
+
+def hash(data):
+    hash_value = 0x624
+    for char in data:
+        if 0x41 <= char <= 0x5A:
+            char += 0x20
+        hash_value = (hash_value * 33 + char) & 0xFFFFFFFF
+    return hash_value