tangible-landscape/r.in.kinect: r.in.kinect for Azure Kinect SDK v2.1.0

This release includes compatibility fix for GRASS 8, move to PCL 1.11, and default interpolation was changed from splines to IDW to make it faster (see 10c3c2a641 commit description for details):

r.in.kinect method=interpolation interpolation=idw ... results in binning with holes filled with IDW. r.in.kinect method=interpolation interpolation=splines ... results in interpolation from points using RST library. r.in.kinect method=mean ... results in binning only (contains no data).