ENH: Making nearestPointClassify query for triangle.

This is to access the face/edge/point status of the nearest at the
same time to ensure a consistent result.

Using getVolumeType query in distanceSurface, not simple normal
dot-product comparison, fails on edges.

src/meshTools/triSurface/booleanOps/surfaceIntersection/surfaceIntersection.C

@@ -315,7 +315,7 @@ void Foam::surfaceIntersection::classifyHit
         surf2Pts[f2[0]],
         surf2Pts[f2[1]],
         surf2Pts[f2[2]]
-    ).classify(pHit.hitPoint(), tolDim, nearType, nearLabel);
+    ).classify(pHit.hitPoint(), nearType, nearLabel);
 
     // Classify points on edge of surface1
     label edgeEnd =