Fixes #7750 - hidden required fields do not prevent submit

When a field is explicitly required an HTML5 tag required was added
which caused issues during form submit.

Fixes #7491 - moved default org and default location to same tab as org/loc selection

fixes #2127: added support for root password hashing other than MD5

Fixes #7450 - do not mark non-required fields

If validation is conditional we don't mark fields as required by
default. Also fixes disabling by override using :required option.

fixes #7299 - do not display 'Mismatches Report' button when no view-host

Fixes #6713: Long names needs to be truncated while listing

Fixes #4596 - Change parent of host group via AJAX

Reparenting host groups requires submitting the form to see the changes
nowadays, this fix makes the host group model inherit all properties
from the parent and show them in real time.

fixes #3105 - use untranslated string for PuppetCA state filter

Fixes #6444 - add support for virtual NICs

Extend additional interface details refs #2240

NIC facts parsing change and we create interfaces in Foreman according
to facts we recieve.

Subclasses does not define their own attributes and serialize them to
attrs hash. All BMC attributes are extracted to separate columns so it's...

Fixes #5926 - hide sensitive parameter values

User can check to hide value when creating or editing global parameter.
The value is masked by *** and is also not displayed when overriding.