Add 'gdal vector partition'

"gdal vector partition" dispatches features into different
files, depending on the values the feature take on a subset of fields specified
by the user.

Apache Hive partitioning (https://arrow.apache.org/docs/python/generated/pyarrow.dataset.HivePartitioning.html)
is used as the partitioning scheme.

Author: rouault

apps/CMakeLists.txt

@@ -120,6 +120,7 @@ target_sources(appslib PRIVATE
   gdalalg_vector_index.cpp
   gdalalg_vector_layer_algebra.cpp
   gdalalg_vector_output_abstract.cpp
+  gdalalg_vector_partition.cpp
   gdalalg_vector_reproject.cpp
   gdalalg_vector_select.cpp
   gdalalg_vector_sql.cpp

apps/gdalalg_vector.cpp

@@ -29,6 +29,7 @@
 #include "gdalalg_vector_pipeline.h"
 #include "gdalalg_vector_rasterize.h"
 #include "gdalalg_vector_filter.h"
+#include "gdalalg_vector_partition.h"
 #include "gdalalg_vector_reproject.h"
 #include "gdalalg_vector_segmentize.h"
 #include "gdalalg_vector_select.h"
@@ -82,6 +83,7 @@ class GDALVectorAlgorithm final : public GDALAlgorithm
         RegisterSubAlgorithm<GDALVectorIndexAlgorithm>();
         RegisterSubAlgorithm<GDALVectorLayerAlgebraAlgorithm>();
         RegisterSubAlgorithm<GDALVectorMakeValidAlgorithmStandalone>();
+        RegisterSubAlgorithm<GDALVectorPartitionAlgorithmStandalone>();
         RegisterSubAlgorithm<GDALVectorReprojectAlgorithmStandalone>();
         RegisterSubAlgorithm<GDALVectorSegmentizeAlgorithmStandalone>();
         RegisterSubAlgorithm<GDALVectorSelectAlgorithmStandalone>();