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ARROW-11052: [Rust] [DataFusion] Implement metrics for HashJoinExec

Implement metrics for `HashJoinExec` to help debug performance issues.

Example output:

```
[2020-12-28T20:46:28Z DEBUG datafusion::physical_plan::hash_join] Built build-side of hash join containing 3115341 rows in 9926 ms
[2020-12-28T20:46:36Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 388922 rows in 7994 ms
[2020-12-28T20:46:36Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 389294 rows in 7986 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 389558 rows in 8326 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 388841 rows in 8499 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 390056 rows in 8643 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18749999 rows and produced 144 output batches containing 389143 rows in 8711 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 389605 rows in 8712 ms
[2020-12-28T20:46:37Z DEBUG datafusion::physical_plan::hash_join] Processed 144 probe-side input batches containing 18750000 rows and produced 144 output batches containing 389922 rows in 8877 ms
```

Closes #9035 from andygrove/join-metrics

Authored-by: Andy Grove <andygrove73@gmail.com>
Signed-off-by: Andy Grove <andygrove73@gmail.com>