Add k2 client package

Investigated the PersonalRobotics Kinect2 Client package for streaming data over the network. The package has been added to the robotic surgery directory and added to the virtual container. Made a few changes from the original k2_client by making it compatible with the catkin file structure, including adding a package.xml and recreating the CMakeList file from a stub. Also installed the corresponding Kinect2 Server on the Windows 8 machine.

https://github.com/personalrobotics/k2_server/wiki/Integrating-Kinect-for-windows-v2-with-ROS