Migrating remaining bulk actions to new select all

* package actions
* errata actions
* system deletion
api v2 - forgot to move ping_controller routes into alphabetized section
Bastion - System Groups details page fix

Fixed a minor issue in the system groups details page
where if you changed the name of the system group the
left panel holding the names of the system groups wouldnt get
updated. This should now work.
Merge pull request #3531 from jlsherrill/selectallerrata3

Migrating remaining bulk actions to new select all
Engine: Adding basic Foreman plugin definition.

This adds the Foreman plugin definition to define a single
navigation menu setup when Katello is installed. Overlapping entities
are scoped by naming and an entire Content menu is added for the
unique entities Katello brings.
Engine Plugin: Cleaning up unused code that results from no longer
supporting our own top level menu.
Merge pull request #3548 from parthaa/system-groups-rename-issue

Bastion - System Groups details page fix
Merge pull request #3547 from komidore64/ping-controller-routes

api v2 - forgot to move ping_controller routes into alphabetized section
Merge pull request #3529 from ehelms/engine-plugin

Engine: Adding basic Foreman plugin definition.
V2: Using strong_parameters instead of param_rules