### What changes were proposed in this pull request?

This PR proposes to add `PushedFilters` into metadata to show the pushed filters in Parquet DSv2 implementation. In case of ORC, it is already added at https://github.com/apache/spark/pull/24719/files#diff-0fc82694b20da3cd2cbb07206920eef7R62-R64

### Why are the changes needed?

In order for users to be able to debug, and to match with ORC.

### Does this PR introduce any user-facing change?

```scala
spark.range(10).write.mode("overwrite").parquet("/tmp/foo")
spark.read.parquet("/tmp/foo").filter("5 > id").explain()
```

**Before:**

```
== Physical Plan ==
*(1) Project [id#20L]
+- *(1) Filter (isnotnull(id#20L) AND (5 > id#20L))
   +- *(1) ColumnarToRow
      +- BatchScan[id#20L] ParquetScan Location: InMemoryFileIndex[file:/tmp/foo], ReadSchema: struct<id:bigint>
```

**After:**

```
== Physical Plan ==
*(1) Project [id#13L]
+- *(1) Filter (isnotnull(id#13L) AND (5 > id#13L))
   +- *(1) ColumnarToRow
      +- BatchScan[id#13L] ParquetScan Location: InMemoryFileIndex[file:/tmp/foo], ReadSchema: struct<id:bigint>, PushedFilters: [IsNotNull(id), LessThan(id,5)]
```

### How was this patch tested?
Unittest were added and manually tested.

Closes #26857 from HyukjinKwon/SPARK-30162.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>