Add send:encrypted test
Create tests for the new send:encrypted permission
Sponsored-by: Klara, Inc.
Sponsored-by: Karakun AG
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: JT Pennington <jt.pennington@klarasystems.com>
Closes #17543