Implement EXPLAIN ANALYZE

[alamb]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.
Now that we have EXPLAIN <query> we know what plan DataFusion will execute. However, there is no particularly easy way to see what actually did happen (e.g how many rows were actually read / filtered by each operator).

Describe the solution you'd like
I would like to extend DataFusion's EXPLAIN functionality to also include the ability to actually run the plan, capture metrics, and display them

I imagine something like the following (adding the executed_plan row)

> EXPLAIN ANALYZE SELECT * from foo;
+---------------+--------------------------------------------------------------------------+
| plan_type     | plan                                                                     |
+---------------+--------------------------------------------------------------------------+
| logical_plan  | Projection: #foo.x                                                       |
|               |   TableScan: foo projection=Some([0])                                    |
| physical_plan | ProjectionExec: expr=[x@0 as x]                                          |
|               |   RepartitionExec: partitioning=RoundRobinBatch(16)                      |
|               |     CsvExec: source=Path(/tmp/foo.csv: [/tmp/foo.csv]), has_header=false |
| executed_plan | ProjectionExec:  num_rows=2 exec_ms=6                                       |
|               |   RepartitionExec:  num_rows=2 exec_ms=4                    |
|               |     CsvExec: num_rows=2, exec_ms=300  |
+---------------+--------------------------------------------------------------------------+

2 rows in set. Query took 0.002 seconds.

Additional context
We probably need something like #679 completed prior to doing this?

cc @Dandandan and @andygrove

[alamb]

There is some prior work by @andygrove here: #662 (added the with_metrics for displayable physical plans)