* Feature: collate two single-sided scans
Some ADF only support single-sided scans, making scanning
double-sided documents a bit annoying.
This new feature enables Paperless to do most of the work,
by merging two seperate scans into a single one, collating
the even and odd numbered pages.
* Documentation: clarify that collation is disabled by default
* Apply suggestions from code review
Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>
* Address code review remarks
* Grammar fixes
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Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>