Exporting changed graph_build_params namespace into all_neighbors (#1060)

Fix to make #949 a non-breaking change.

Authors:
  - Jinsol Park (https://github.com/jinsolp)

Approvers:
  - Divye Gala (https://github.com/divyegala)

URL: #1060

Author: jinsolp

cpp/include/cuvs/neighbors/all_neighbors.hpp

@@ -23,6 +23,8 @@
 #include <variant>
 
 namespace cuvs::neighbors::all_neighbors {
+// For re-exporting into all_neighbors namespace
+namespace graph_build_params = cuvs::neighbors::graph_build_params;
 /**
  * @defgroup all_neighbors_cpp_params The all-neighbors algorithm parameters.
  * @{