Graph primitives API updates

[seunghwak]

Partially address #2003.

1. Renumber VertexFrontier & SortedUniqueKeyBucket to vertex_frontier_t & sorted_unique_key_bucket_t to be consistent with the naming schemes for graph_t & graph_view_t.
2. vertex_frontier_t to take number of buckets as an input parameter (instead of non-type template parameter) and rename get_bucket to bucket.
3. Use constexpr size_t instead of enum calss for bucket indices to avoid unnecessary type casting.
4. Update fill() of edge_partition_src|dst_property_t to take handle instead of stream to be consistent with other member functions (e.g. clear())
5. Remove ..._v primitives that working on a subset of local vertices.
6. Update v_op to take vertex ID (to be consistent with e_op which takes source & destination IDs).
7. Other miscellaneous clean-ups.

[codecov-commenter]

Codecov Report

Merging #2220 (cb94465) into branch-22.06 (38be932) will increase coverage by 0.04%.
The diff coverage is n/a.

@@               Coverage Diff                @@
##           branch-22.06    #2220      +/-   ##
================================================
+ Coverage         70.82%   70.86%   +0.04%     
================================================
  Files               170      170              
  Lines             11036    11036              
================================================
+ Hits               7816     7821       +5     
+ Misses             3220     3215       -5     

Impacted Files	Coverage Δ
python/cugraph/cugraph/structure/hypergraph.py	90.00% <ø> (ø)
.../cugraph/tests/test_edge_betweenness_centrality.py	84.93% <0.00%> (+0.60%)	⬆️
...graph/cugraph/tests/test_betweenness_centrality.py	83.01% <0.00%> (+0.62%)	⬆️
python/cugraph/cugraph/tests/test_graph_store.py	100.00% <0.00%> (+1.56%)	⬆️
python/cugraph/cugraph/tests/test_utils.py	75.55% <0.00%> (+4.44%)	⬆️

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[ChuckHastings]

@gpucibot merge