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GH-44006: [GLib][Parquet] Add `gparquet_arrow_file_writer_new_row_group()` (#44039)

### Rationale for this change

This is a low-level API to control how to write data. This is for advanced users.

### What changes are included in this PR?

`gparquet_arrow_file_writer_write_chunked_array()` is also added to write a test for `gparquet_arrow_file_writer_new_row_group()`.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

Yes.
* GitHub Issue: #44006

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>