fixes #4528 - import structured Puppet facts

A new structured fact importer converts nested hashes into the
FactName::SEPARATOR layout used for internal structured fact storage and
extends the regular fact importer to create the hierarchy of FactNames.
This can be used by other plugins requiring structured storage. It does...

fixes #13845 - remove 1.13 deprecations

Refs #13164 - Consistent parameters authorization in api

Fixes #15570 - Fixed query syntax in ForemanTrend#find_hosts

Fixes #14410 - respond 503 when pending migration

Fixes #15370 - Validate settings values

Adds validations for administrator, email_reply_address
and trusted_puppetmaster_hosts settings

refs #15336 - use i18n variable names and plural form

Fixes #15471 - Find CA expiry even if some dates are missing

If some certificates in the puppet CA proxy are missing dates, the proxy
view for puppet CA will be broken as the comparison used to find the CA
certficate's expiry date will fail. This change also adds a minor...

fixes #15525 - always update facts

Previously, last_compile was checked to see if facts were uploaded in
the last minute and if so, ignore processing them. This code dates back
to the very first tagged version of Foreman in git - but these days we
have multiple providers so this check doesn't make sense. It's quite...

Fixes #15336 - Enables proper deletion of Orgs

Prior to this commit if you had an Org/Location with a host and tried to
the delete the Org. You would end up with an error that looks like

<Org> is used by <Host> (RuntimeError)

Basic error is these 2 areas...