Add cgu WP page

src/app/core/components/main/footer/footer.component.html

...n/components/wordpress-page/wordpress-page.component.html

src/app/editorialisation/editorialisation-routing.module.ts

src/app/routes.ts

src/environments/environment.dev.ts

src/environments/environment.rec.ts

src/environments/environment.ts

src/i18n/messages.en.xlf

src/i18n/messages.fr.xlf