Deprecation - Remove `Pds::Breadcrumbs` component

[didoo]

Description

Now that the Pds::Breadcrumbs component has been migrated in Cloud UI to Hds::Breadcrumb, we can remove this component from the Structure codebase.

Changes

In this PR I have

• removed entirely the Pds::Breadcrumbs component (tests and documentation included)
• added Storybook documentation files for the deprecated component
  • index
  • breadcrumbs

Testing

I have symlinked my local directory package/pds-ember to the cloud-ui/node_modules/@hashicorp/pds-ember folder in Cloud UI, run the application and tested that everything worked as expected.

Relevant links

• https://github.com/hashicorp/cloud-ui/pull/2252
• https://github.com/hashicorp/cloud-ui/pull/2900
• DS-038: Structure maintenance RFC

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Name	Status	Preview	Updated
structure	✅ Ready (Inspect)	Visit Preview	Jul 28, 2022 at 6:28AM (UTC)

[didoo]

@jgwhite @meirish @cbfx @jesdavpet at the moment I have not received any comment, so… I’m going to interpret it as implicit approval :). Any objections?

[jesdavpet]