Generate a RegionMapping vector for the 66 nodes connectivity towards one of the Surfaces in TVB

Preferable towards the 16k surface.
We had one RegionMapping generated for the 96 nodesConnectivity, from a parcellation data.
On LadelukeTVB there is a parcellation for 68 nodes, which we might be able to reuse.
For visualization purposes only, we could have a simple RegionMapping generated with min Euclidian distance between each vertex and region centers. JUST FOR VIEW.