Added IRealTimeDataBroker interface.
Split RealTimeDataBroker into a RealTimeDataServer that takes care of
networking, and RealTimeDataBroker that connects to the data sources.
Changes to accommodate the new RealTimeDataServer class.
Small changes to get the speed test working.
Small fix to real time price simulator.
Merge branch 'Real-time-broker-split-test'

Conflicts:
	QDMSTest/QDMSServer/RealTimeDataBrokerTest.cs