Khaled Mammou authored Mar 25, 2018 and David Flynn committed May 17, 2018

This commit uses a constant (per attribute) number of neighbours in
point attribute prediction, replacing a method where the encoder searches
for an optimal number and signals this on a per point basis.

Extracted-from: http://wg11.sc29.org/svn/repos/MPEG-I/Part5-PointCloudCompression/CE/CE0/CE0.1/trunk@1357


Reintegrated-by:  <dflynn@blackberry.com>