Remove vtk dependacy from the Network classes
In order to improve the code organization, all classes related to the Network (located right now at LidarView/LidarPlugin/Common/Network), shouldn't have a vtk dependancy, or be prefixed by vv. They should belong to a cmake target that link only against boost
migrated from: https://gitlab.kitware.io/ComputerVision/LidarView/issues/24