changed the name of node of lane_detector_test and added rosparam in it ,launch file giving in the next commit
changing core.launch
Merge branch 'laneDetectorNode' of https://github.com/arnaghosh/freezing-batman into arnaghosh-laneDetectorNode

Conflicts:
	applications/eklavya/eklavya_launchers/launch/core.launch
Fixed rosparam path to allow for separate lane_detector instances using the same code for both the cameras.
Merge branch 'arnaghosh-laneDetectorNode'
Merge branch 'master' of https://github.com/AGV-IIT-KGP/freezing-batman