feat(cc-oauth-consumer): init component

[HeleneAmouzou]

Fix #1294

What does this PR do?

• Introduce cc-oauth-consumer and cc-oauth-consumer-form components
  • The cc-oauth-consumer component display oAuth Consumer information
  • The cc-oauth-consumer-form is a creating / updating form (not ready yet)
• Refactor of change-case helper to add snakeCase and camelCase

How to review?

• cc-oauth-consumer
  • Check the code and the commits ( ⚠️ exept the wip commit with cc-oauth-consumer-form )
  • Check the stories in the preview (to do add preview link)
  • Play with demo-smart
  • Check if the design is close enough to the wireframe made by Marion
• cc-oauth-consumer-form
  • TO DO

Things to be discussed

• Should the component be renamed cc-oauth-consumer-info ?

TO DO

• Fix typechecking in cc-oauth-consumer smart
• Fix rights section loading mode
• Add smart documentation
• cc-oauth-consumer-form (wip)