This creates a dream.simulation namespace

Machine and Exit updated so that they output in JSON also confidence intervals. Got to check with Nex the notation

remove unused imports and the use of import *

(Not sure it's required)

lineGenerationCMSD.py was added. This is a main script that reads from the CMSD like xml files made by panos. Tested in topologies 01, 03,04 and 06. To test in more Topologies we have to find how CMSD models parallel stations