Add RFC1459 4.1.1 password message

In order to allow the server to handle password message properly, it
should take care of the correct parameters being passed to the function.

Tokenizer is still missing, but should be fine for basic functionality.

src/server.py

@@ -21,6 +21,9 @@ class Handler_TCPServer(socketserver.BaseRequestHandler):
     def ping(self, param):
         return "PONG"
 
+    def command_pass(self, param):
+        return param == self.password
+
 
 if __name__ == "__main__":
     HOST, PORT = "localhost", 9999

test/test_server.py

@@ -6,3 +6,10 @@
 def test_ping(server):
     assert server.ping(server, "some message") == "PONG"
 
+def test_command_pass(server):
+    server.password = "password"
+    assert server.command_pass(server, "password") == True
+
+def test_command_pass_wrong(server):
+    server.password = "password"
+    assert server.command_pass(server, "wrong password") == False