beta code to orient (determine inside/outside) a closed surface

user must specify some seed values
minor fix in interp matrix
fix a small problem with tri2cp and bandwidths
orientation and normals from cp-rep, attempt #2
speed up a slow unit test and make quieter
minor typo in help text
minor edits
orientation: improve robustness/speed of dist classifier, other minor edits
minor comment changes
orientation codes based on interpolating signed distance