arrow

GH-45015: [C++][Parquet] Allow configuring the default footer read size (#45016)



### Rationale for this change
Reading the footer for a parquet file whose file metadata is >64KB can require multiple round trips to a high latency file system like S3. Allowing this default read size to be configurable allows for reducing the round trips if it's known up front that the file might potentially have a large amount of metadata.

### What changes are included in this PR?
A `footer_read_size_` property is added to parquet `ReaderProperties` along with a getter/setter. This is then utilized in the file reader's `GetFooterReadSize` method.

* GitHub Issue: #45015

Lead-authored-by: Matt Topol <zotthewizard@gmail.com>
Co-authored-by: mwish <maplewish117@gmail.com>
Signed-off-by: Matt Topol <zotthewizard@gmail.com>