message: Minor: build fixes
diff: @@ -528,7 +528,7 @@ BVH2DType* buildBVHTree(std::vector<Triangle2DType>& tris)
  std::vector<BoundingBox2DType> bboxes(tris.size());
  // Get bounding boxes of each element
  - for(int i = 0; i < tris.size(); ++i)
  + for(size_t i = 0; i < tris.size(); ++i)
  {
  bboxes[i] = findBbox(tris[i]);
  }
  @@ -545,9 +545,9 @@ void findCandidateBVHTreeBins(BVH2DType* tree,
  Point2DType ppoint,
  std::vector<int>& candidates)
  {
  - int offsets;
  - int counts;
  - int* candidatesPtr;
  + axom::IndexType offsets;
  + axom::IndexType counts;
  + axom::IndexType* candidatesPtr;
  // Get the candidates for a given probe point:
  // BVH::findPoints takes an array of points, and allocates and fills an array
  // for all the candidate intersections with the points in a packed manner.
  