feat: Add plan conversion statistics to extended explain info #2140

Job	Run time
macos-14/Spark 3.4, JDK 11, Scala 2.12 [fuzz]	1h 0m 11s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [shuffle]	31m 44s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [sql]	12m 54s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [exec]	39m 53s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [fuzz]	59m 26s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [parquet]	26m 54s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [parquet]	26m 51s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [sql]	13m 18s
macos-14/Spark 3.4, JDK 11, Scala 2.12 [exec]	48m 54s
macos-14/Spark 3.5, JDK 17, Scala 2.13 [shuffle]	30m 13s
	5h 50m 18s

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