[SPARK-38322][SQL] Support query stage show runtime statistics in formatted explain mode

[ulysses-you]

What changes were proposed in this pull request?

Add query stage statistics information in formatted explain mode.

Why are the changes needed?

The formatted explalin mode is the powerful explain mode to show the details of query plan. In AQE, the query stage know its statistics if has already materialized. So it can help to quick check the conversion of plan, e.g. join selection.

A simple example:

SELECT * FROM t JOIN t2 ON t.c = t2.c;

== Physical Plan ==
AdaptiveSparkPlan (21)
+- == Final Plan ==
   * SortMergeJoin Inner (13)
   :- * Sort (6)
   :  +- AQEShuffleRead (5)
   :     +- ShuffleQueryStage (4), Statistics(sizeInBytes=16.0 B, rowCount=1)
   :        +- Exchange (3)
   :           +- * Filter (2)
   :              +- Scan hive default.t (1)
   +- * Sort (12)
      +- AQEShuffleRead (11)
         +- ShuffleQueryStage (10), Statistics(sizeInBytes=16.0 B, rowCount=1)
            +- Exchange (9)
               +- * Filter (8)
                  +- Scan hive default.t2 (7)
+- == Initial Plan ==
   SortMergeJoin Inner (20)
   :- Sort (16)
   :  +- Exchange (15)
   :     +- Filter (14)
   :        +- Scan hive default.t (1)
   +- Sort (19)
      +- Exchange (18)
         +- Filter (17)
            +- Scan hive default.t2 (7)

Does this PR introduce any user-facing change?

no, only change the output of explain in AQE

How was this patch tested?

Add test

[ulysses-you]

cc @dongjoon-hyun @cloud-fan @HyukjinKwon

[cloud-fan]

thanks, merging to master!

[ulysses-you]

thank you @cloud-fan !