### What changes were proposed in this pull request?
PG and Oracle both support use CUBE/ROLLUP/GROUPING SETS in GROUPING SETS's grouping set as a sugar syntax.
In this PR, we support it in Spark SQL too
### Why are the changes needed?
Keep consistent with PG and oracle
### Does this PR introduce _any_ user-facing change?
User can write grouping analytics like
```
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b));
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), ());
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()));
```
### How was this patch tested?
Added Test
Closes#32201 from AngersZhuuuu/SPARK-35026.
Authored-by: Angerszhuuuu <angers.zhu@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
b22d54a58a
