Test the sysctl/loader against the regex, not the value the sysctl/loader contains.

Ticket: #5597
Initial code drop for configurable idmap backends
Deterine idmap type dynamically... the entire purpose for all of this
Merge branch 'feature/idmap'
Remove dead code and fix tdb2
Make the navtree a happy camper
Various catchup fixes.
Includes text to resolve https://bugs.freenas.org/issues/4977.
Start to integrate new features.
Create default entries
Add a new Wizard class for our Initial Wizard
Add a new URL for the initial wizard
Show up the wizard in the first screen
Show Initial Wizard only if there are disks and no volumes
Create the volume, dataset and share on Initial Wizard
Better autoselect of volume layout until 11 disks for Wizard
Handle >= 12 disks in Initial Wizard
Split logic for auto select voume layout in its own method
Hook up performance typ of volume in Initial Wizard
Add tree icon for initial wizard
Add Inital Wizard to the tree menu