message: Adds axom namespace to several function calls in SignedDistance
  Fixes compilation error on MSVC due to the ambiguity between
  the quest::utilities and axom::utilities namespaces.
diff: @@ -462,7 +462,7 @@ double SignedDistance< NDIMS >::computeSign(
  double dist = axom::primal::squared_distance( cpt->closest_point,
  cpt->closest_pts[i] );
  - if ( utilities::isNearlyEqual( dist, 0.0 ) )
  + if ( axom::utilities::isNearlyEqual( dist, 0.0 ) )
  {
  N += cpt->surface_elements[ i ].normal();
  #ifdef AXOM_DEBUG
  @@ -483,7 +483,7 @@ double SignedDistance< NDIMS >::computeSign(
  double dist = axom::primal::squared_distance( cpt->closest_point,
  cpt->closest_pts[i] );
  - if ( utilities::isNearlyEqual( dist, 0.0 ) )
  + if ( axom::utilities::isNearlyEqual( dist, 0.0 ) )
  {
  double alpha = cpt->surface_elements[ i ].angle( cpt->cpt_locs[ i ] );
  N += ( cpt->surface_elements[ i ].normal().unitVector()*alpha );
  