Include cryptsetup in recovery images

Closes #292

etc/zfsbootmenu/recovery.conf.d/recovery.conf

@@ -1,6 +1,18 @@
 zfsbootmenu_teardown+=" /zbm/contrib/xhci-teardown.sh "
 zfsbootmenu_early_setup+=" /zbm/contrib/console-init.sh "
-install_optional_items+=" /etc/zbm-commit-hash /bin/gdisk /bin/parted /bin/mkfs.vfat /bin/mkfs.ext4 /bin/curl /bin/efibootmgr /bin/ip /bin/dhclient /sbin/dhclient-script "
+install_optional_items+="\
+ /etc/zbm-commit-hash\
+ /bin/gdisk\
+ /bin/parted\
+ /bin/mkfs.vfat\
+ /bin/mkfs.ext4\
+ /bin/cryptsetup\
+ /bin/efibootmgr\
+ /bin/ip\
+ /bin/curl\
+ /bin/dhclient\
+ /sbin/dhclient-script\
+"
 omit_drivers+=" amdgpu radeon nvidia nouveau i915 "
 
 # Network related modules