test: add impacket for SMB testing

Import impacket 0.9.15 for use in SMB testing. This was generated by
doing "pip2.7 install -t . impacket"

Unnecessary files for current testing were deleted.

tests/python_dependencies/impacket/__init__.py

@@ -0,0 +1,25 @@
+# Copyright (c) 2003-2016 CORE Security Technologies
+#
+# This software is provided under under a slightly modified version
+# of the Apache Software License. See the accompanying LICENSE file
+# for more information.
+#
+# Author: Alberto Solino (@agsolino)
+#
+
+# Set default logging handler to avoid "No handler found" warnings.
+import logging
+try:  # Python 2.7+
+    from logging import NullHandler
+except ImportError:
+    class NullHandler(logging.Handler):
+        def emit(self, record):
+            pass
+
+# All modules inside this library MUST use this logger (impacket)
+# It is up to the library consumer to do whatever is wanted 
+# with the logger output. By default it is forwarded to the 
+# upstream logger
+
+LOG = logging.getLogger(__name__)
+LOG.addHandler(NullHandler())