Made changes to make the chest camera processing nodes work with hydro, pcl 1.7

This enables the nodes to work with hydro-devel, mainly just by re-working the dependencies in the cmake. It is possible that speed-ups can be made in the conversions but I want to convert everything to nodelets at the same time as doing that.

Some unnecessary files were removed in process since they are not used in the pipeline, i.e. noise_voxel_grid and synthesize_wall_cloud.

Additionally I changed the raytrace range for clearing to be a bit longer, this does not seem to impact performance and makes sense since it should not limit this parameter to much.

I have tested this on my computer but we have not had time to update the ros installation on our robot.