Accept agentpath as a parameter to the run script

This is to be used when you want to start open daylight with say the yourkit profiling agent

Usage would be something like this,

./run.sh -agentpath:"/Applications/Yourkit.app/bin/mac/agent.lib"

Change-Id: I0034adab46dc5185e54dfb22c85985324f82d0fb
Signed-off-by: Moiz Raja <moraja@cisco.com>
Merge "Accept agentpath as a parameter to the run script"