Replace old angular config provider form with the new ProviderForm

[skateman]

Depends on: ManageIQ/manageiq-providers-foreman#62
Parent issue: ManageIQ/manageiq#18818

Before:

After:

This change will allow us to add any other configuration management provider on this form.

@miq-bot add_label pending core

[miq-bot]

Checked commit skateman@ddeeb4c with ruby 2.5.7, rubocop 0.69.0, haml-lint 0.28.0, and yamllint
4 files checked, 4 offenses detected

app/views/ems_configuration/edit.html.haml

• ⚠️ - Line 1 - Layout/TrailingBlankLines: Final newline missing.
• ⚠️ - Line 1 - Line is too long. [206/160]

app/views/ems_configuration/new.html.haml

• ⚠️ - Line 1 - Layout/TrailingBlankLines: Final newline missing.
• ⚠️ - Line 1 - Line is too long. [162/160]

[skateman]

Note that there's an issue with setting the name in the provider PR. But other than that, everything should be working.

[h-kataria]

@skateman found couple of issues, am missing something missing in my environment, I have ManageIQ/manageiq-providers-foreman#62 checked out locally

• when I try to add a dummy CAM/Foreman provider, I get API pop up error message
  Data {"error":{"kind":"bad_request","message":"Could not create the new provider - unknown attribute 'base_url' for Endpoint.","klass":"Api::BadRequestError"}}

• When i tried to edit existing CAM/Foreman providers, URL/Username/Password fields do not get populated even tho i have values for those saved, see screenshots

[skateman]

@h-kataria forgot to mention that ManageIQ/manageiq-providers-foreman#62 needs a rebase, but asked Adam to do that on the PR as well.

[h-kataria]

@skateman after I rebased ManageIQ/manageiq-providers-foreman#62 i edited an existing Foreman Provider, this time all fields were populated in the form, but after i edited the zone of the provider and pressed save, that cleared my saved url/username/password data.

[skateman]

@h-kataria yeah, it's a delegation error in the provider PR, I'll make some suggestions there.

[skateman]

@h-kataria this is ready for a final round, all deps are in

[agrare]

👍 works for me