Eulemur flavifrons

Main modifications:

• Now, there is an algorithm calcOnOff, which calculates the times between burst of traffic. It also could be expanded to calc the number of packets and kbytes between the bursts. It is written and readded from the XML file as well.
• Changed the Object organization... now, the Class NetworkFlow contains all members, implementation related to members (getters and setters), because it is extremelly boring to add a new getter and setter on NetworkFlow and DummyFlow Each time. Dummy flow is responsible for controlling the treads and the On/Off times. also it will be easy to expand NetworkFlow, if need.
• Regression and unity tests organized in a single function on Main.cpp