New database sniffer
* modules/sniffer/__init__.py
  -- added database sniffer
* modules/sniffer/database_sniffer.py
  modules/sniffer/parser_mysql.py
  -- Added an initial version of a database sniffer.
     As of its current version, it sniffs and parses MySQL
	 packets, dumping queries, responses, and inialization
	 info (password hash, salt, username, etc.)  More databases
	 to come.