Added virtual_cam: package for taking snapshots and playing them back later

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@14396 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Now publishes on fixed frame

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@14413 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Added snapshot service

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@14938 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Added cheese service

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@14944 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
virtual_cam loader is now a library

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15030 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
virtual_cam loader is now a library

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15031 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Fixed usage

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15616 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Added Image class that will do all the magic

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15633 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Refactured a bit

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15635 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Can now be used without initializing ROS

git-svn-id: https://roboticssrv.wtb.tue.nl/svn/ros/code/tue-ros-pkg/trunk/tue_perception/virtual_cam@15650 3a3c2cfb-d3b9-409e-9e75-db8fcdbcaac6
Merge branch 'master' of https://github.com/tue-robotics-lab/virtual_cam