changes
Second push.
change table name in rftable to something more sense

change rfserver's process method to update vm ports and dp ports table

add UI using Cliff to test rfserver operation

modified projectw.sh: run with projectw.sh --ryu [ports]
that will create a VM with 2*ports interfaces
create mytest/test2.py. run with test2.py [ports] to create two switch,
inter-link using port 1. and each has PORTS host port.

Signed-off-by: Trung Truong <trungdtbk@gmail.com>