feat(components-core): new Image component

[maycomayco]

Description

New image component for UDS

Some thoughts on these changes:

• The configuration of the .prettierrc file was reverted as it was unnecessarily changing the files in the entire project. I don't consider it necessary to make this change now.
• I had to use the // eslint-disable-next-line import/no-cycle rule because the utils.js file has different responsibilities. On one hand, it imports all the utils classes like the spreadClasses() method, and it also exports the init*() methods so that the components can be used outside of UDS. This will be something to review in the future for better code modularization.
• Also, some props defined in the Testimonial component stories were misdefined.

Links

• Unity reference site
• JIRA ticket

Checklist

• [x] Unity project successfully builds from root yarn install & yarn build
• [x] Commits do not contain multiple scopes
• [x] Add/updated examples
• [x] No new console errors
• [x] Accessibility checks

Browsers

• [x] Chrome
• [x] Safari
• [x] Firefox
• [x] Edge

Images

[mlsamuelson]

We agreed on reverting the prettierrc.js quote setting via Slack.

Conflicts to resolve here now.