[SEDONA-637] Show spatial filters pushed to GeoParquet scans in the query plan; allow disabling spatial filter pushdown

[Kontinuation]

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• Yes, I have read the Contributor Rules and Contributor Development Guide

Is this PR related to a JIRA ticket?

• Yes, the URL of the associated JIRA ticket is https://issues.apache.org/jira/browse/SEDONA-637. The PR name follows the format [SEDONA-XXX] my subject.

What changes were proposed in this PR?

Spatial filters pushed down to the GeoParquet scan node are visible in the query plan. For example, the following query

df.where("ST_Intersects(geometry, ST_Point(1, 1))").explain()

Produces the following query plan

== Physical Plan ==
Filter (isnotnull(geometry#218) AND  **org.apache.spark.sql.sedona_sql.expressions.ST_Intersects**  )
+- FileScan geoparquet [id#217L,geometry#218,bbox#219] Batched: false, DataFilters: [isnotnull(geometry#218),  **org.apache.spark.sql.sedona_sql.expressions.ST_Intersects**  ], Format: GeoParquet with spatial filter [geometry INTERSECTS POINT (1 1)], Location: InMemoryFileIndex(1 paths).., PartitionFilters: [], PushedFilters: [IsNotNull(geometry)], ReadSchema: struct<id:bigint,geometry:binary,bbox:struct<xmin:double,ymin:double,xmax:double,ymax:double>>

The spatial filters pushed down to GeoParquet scan is shown in Format: GeoParquet with spatial filter [...].

Spatial filter push-down can be manually disabled by configuring the Spark configuration spark.sedona.geoparquet.spatialFilterPushDown to false:

spark.conf.set("spark.sedona.geoparquet.spatialFilterPushDown", "false")
df.where("ST_Intersects(geometry, ST_Point(1, 1))").explain()

== Physical Plan ==
Filter (isnotnull(geometry#218) AND  **org.apache.spark.sql.sedona_sql.expressions.ST_Intersects**  )
+- FileScan geoparquet [id#217L,geometry#218,bbox#219] Batched: false, DataFilters: [isnotnull(geometry#218),  **org.apache.spark.sql.sedona_sql.expressions.ST_Intersects**  ], Format: GeoParquet, Location: InMemoryFileIndex(1 paths).., PartitionFilters: [], PushedFilters: [IsNotNull(geometry)], ReadSchema: struct<id:bigint,geometry:binary,bbox:struct<xmin:double,ymin:double,xmax:double,ymax:double>>

How was this patch tested?

Pass newly added tests

Did this PR include necessary documentation updates?

• Yes, I have updated the documentation.