[GLib] Add a sub `Buffer` class for `GBytes` based buffer
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Component: GLib
Status: needs champion
Type: enhancement
- Dominant language
- C++
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Description
### Describe the enhancement requested
`garrow_buffer_new_bytes()` uses raw `arrow::Buffer`. So we need to keep life time for underlying `GBytes` data. If we have a sub `Buffer` class that refers (`g_bytes_ref()`) underlying `GBytes` data, we can keep life time for underlying `GBytes` data automatically.
See also: https://github.com/apache/arrow/pull/44341#discussion_r1793045442
### Component(s)
GLib
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