Support all service types for dialog buttons

[eclarizio]

An extension of #4404, this adds all the Service class's descendants to the list of object types that are supported by custom buttons.

https://bugzilla.redhat.com/show_bug.cgi?id=1611527

@miq-bot add_label gaprindashvili/yes, bug, blocker, services, angular dialogs
@miq-bot assign @h-kataria

/cc @tinaafitz

[miq-bot]

Checked commit eclarizio@5eba11a with ruby 2.3.3, rubocop 0.52.1, haml-lint 0.20.0, and yamllint 1.10.0
2 files checked, 0 offenses detected
Everything looks fine. 🍰

[h-kataria]

looks good

[simaishi]

Gaprindashvili backport details:

$ git log -1
commit 2b082a1754eb30a439773af6c578f5bbc6967b19
Author: Harpreet Kataria <[email protected]>
Date:   Mon Aug 6 14:18:24 2018 -0400

    Merge pull request #4418 from eclarizio/BZ1611527
    
    Support all service types for dialog buttons
    (cherry picked from commit 14931c230df0cffe8f43af60206bf2e523dcb247)
    
    https://bugzilla.redhat.com/show_bug.cgi?id=1612062

[simaishi]

@eclarizio Please take a look at Travis failure in G-branch:
https://travis-ci.org/ManageIQ/manageiq-ui-classic/jobs/412872375

An error occurred while loading ./spec/services/dialog_local_service_spec.rb.
Failure/Error:
  include_examples "DialogLocalService#determine_dialog_locals_for_custom_button return value",
                   "service", "services", "/service/explorer"
ArgumentError:
  Could not find shared examples "DialogLocalService#determine_dialog_locals_for_custom_button return value"

[eclarizio]

@simaishi Ah, it's because this PR (#4374) introduced the shared_examples and isn't on the list of things to backport.

It will need everything from lines 43 through 61 from here.

[simaishi]

@eclarizio Based on the BZ, #4374 will not be backported to Gaprindashvili branch. Can you please create a PR to fix the Travis error?