[GLib] Expose AlignStream methods in InputStream, OutputStream classes #19654
Description
In some cases it may be desireable to write padding in between messages to obtain 8- or 64-byte alignment. After ARROW-3212, the IPC metadata is deterministically-sized, so alignment is up to the user
Reporter: Wes McKinney / @wesm
Assignee: Kouhei Sutou / @kou
PRs and other links:
Note: This issue was originally created as ARROW-3319. Please see the migration documentation for further details.