Send stream should only list included snaps

Currently, zfs send streams will include a list of all snapshots
on the source side if the '-p' option is provided. This can cause
performance problems on the receive side, especially if those
snapshots aren't present on the destination. These problems arise
because guid_to_name(), which is used for several receive side
functions, will search the entire receive-side pool if it can't
find a snapshot with a matching guid. This patch corrects the
issue by ensuring only streams that require this list of snapshots
include them.

Reviewed-by: Alek Pinchuk <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Matt Ahrens <[email protected]>
Signed-off-by: Tom Caputi <[email protected]>
Closes #8533 

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