Fixes #12964 - Show proxy features version for proxy<1.11

fixes #12714 - Show proxy status in index, and create a show page for proxy

Fixes #12934 - Unhiding paramter values does not clear their value

Fixes #12884 - Allow importing subnets from smart proxy

Fixes #12911 - Turning on 0.35.1 cops

Fixes #12514 - update guest types from vSphere API 6.0

Fixes #12937 - All parameters can be hidden

The js to hide parameters was moved to lookup_key.js which isn't
included in application.js so only templates that include it
specifically can hide values.

Fixes #12860 - Moves new_child_fields_template to LayoutHelper and connect new child to parent

Fixes #12793 - reverted field filtration to enabled fields only

Fixes #12794 - Defined logic when properties should be sent to server

If hostgroup is not set - always send the parameters.
On hostgroup change - remove inherited parameters from the request, so the values from the hostgroup will take place.
On save - send the values according to the state of the "inherit" button.