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ARROW-10514: [C++][Parquet] Make the column name the same for both output formats of parquet reader

In parquet-reader there are two ways to output the schema for a Parquet file: DebugPrint and JSONPrint. When output in JSON format, the Column name is short name instead of full-qualified name. For example, for schema (1), there will be 2 Columns with `"Name": "key"`. That's very confusing.

In this PR we start using full-qualified name for Column in JSONPrint instead of short name, similar to DebugPrint.

(1):
```
required group field_id=0 spark_schema {
  optional group field_id=1 a (Map) {
    repeated group field_id=2 key_value {
      required binary field_id=3 key (String);
      optional group field_id=4 value (Map) {
        repeated group field_id=5 key_value {
          required int32 field_id=6 key;
          required boolean field_id=7 value;
        }
      }
    }
  }
}
```

Closes #9649 from FawnD2/patch-1

Authored-by: FawnD2 <zzosimova@ya.ru>
Signed-off-by: Antoine Pitrou <antoine@python.org>