message: Further reduces verbosity of warnings in Delaunay point location when `warnOnInvalid` is false
  Other warnings were disabled in a previous commit. This one adds the remaining warnings.
diff: @@ -401,14 +401,16 @@ public:
  {
  if(m_mesh.isEmpty())
  {
  - SLIC_ERROR(
  + SLIC_ERROR_IF(
  + warnOnInvalid,
  "Attempting to insert point into empty Delaunay triangulation."
  "Delaunay::initializeBoundary() needs to be called first");
  return INVALID_INDEX;
  }
  if(!m_bounding_box.contains(query_pt))
  {
  - SLIC_WARNING(
  + SLIC_WARNING_IF(
  + warnOnInvalid,
  "Attempting to locate element at location outside valid domain");
  return INVALID_INDEX;
  }
  