ENH: support construction of pointIndexHit from pointHit

STYLE: combine templated/non-templated headers (reduced clutter)

STYLE: use hitPoint(const point&) combined setter

- same as setHit() + setPoint(const point&)

ENH: expose and use labelOctBits::pack method for addressing

applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/controlMeshRefinement/controlMeshRefinement.C

@@ -92,9 +92,7 @@ bool Foam::controlMeshRefinement::detectEdge
             magSqr(a - b) < tolSqr
         )
         {
-            pointFound.setPoint(midPoint);
-            pointFound.setHit();
-
+            pointFound.hitPoint(midPoint);
             return true;
         }