Toolbars: add miqCallAngular.
Toolbars: add miqCallAngular.

To support support data-function= on buttons we need a way to call
Angular code (in a scope) from outside.

Example:

  button(
    :ems_container_deployment,
    'pficon pficon-add-circle-o fa-lg',
    t = N_('Create #{ui_lookup(:table=>"ems_container")}'),
    t,
    :data => {
     'function' => 'miqCallAngular',
     'function-data' => '{ "name": "showListener", "args": [] }'}
  ),
(transferred from ManageIQ/manageiq@e1ed00529582924b05740a435164c869c8b664ed)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic